Mrs. Robinson 3rd Grade Final Exam PDF

Summary

This document contains a set of math practice questions about multiplication and division for 3rd-grade students. It includes multiple-choice and short answer questions involving arrays and word problems.

Full Transcript

**Mrs. Robinson** **3^rd^ Grade** **Final One Exam** 1. +-----------------------------------+-----------------------------------+ | | 3 + \_\_\_\_\_ + \_\_\_\_\_ + | | | \_\_\_\_\_ = \_\_\_\_\_\_\_\_ | |...

**Mrs. Robinson** **3^rd^ Grade** **Final One Exam** 1. +-----------------------------------+-----------------------------------+ | | 3 + \_\_\_\_\_ + \_\_\_\_\_ + | | | \_\_\_\_\_ = \_\_\_\_\_\_\_\_ | | | | | | 4 x \_\_\_\_\_\_ = \_\_\_\_\_\_\_ | +-----------------------------------+-----------------------------------+ 2\. Draw a picture to show 2 + 2 + 2 = 6. Then, write a multiplication sentence to represent the picture. +-----------------------+-----------------------+-----------------------+ | 3. | | a\. There are 4 rows | | | | of hearts. How many | | | | hearts are in each | | | | row? | | | | \_\_\_\_\_\_\_\_\_\_ | | | | | | | | b\. Write a | | | | multiplication | | | | equation to | | | | describe the array. | | | | \_\_\_\_\_\_\_\_\_\_\ | | | | _\_\_\_\_ | +-----------------------+-----------------------+-----------------------+ 4\. Write a multiplication equation for the array shown below. 5\. Judy collects marbles. She arranges them in 3 rows of 6. Draw Judy's array to show how many marbles she has altogether. Then, write a multiplication equation to describe the array. 6\. Draw an array that shows 5 rows of 3 squares. Then, write a multiplication equation for your array. 7\. There are 12 glue sticks for the class. The teacher divides them into 4 equal groups. Draw the number of glue sticks in each group.         There are \_\_\_\_\_\_\_\_\_\_\_ glue sticks in each group.  12 ÷ \_\_\_\_\_\_\_\_ = \_\_\_\_\_\_\_\_\_\_ 8\. Draw a picture to show 18 ÷ 3. Then, fill in the blank to make a true division sentence.  18 ÷ 3 = \_\_\_\_\_\_\_\_\_\_ +-----------------------------------+-----------------------------------+ | 9\.   Divide 15 triangles into | | | groups of 5. | | | | | | 15 ÷ 5 = \_\_\_\_\_\_\_ | | +-----------------------------------+-----------------------------------+ 10\.   Cesar arranges 12 notecards into rows of 6 for his presentation. Draw an array to represent the problem. 12 ÷ 6 = \_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_ × 6 = 12  11\. What do the unknown factor and quotient represent?  +-----------------------------------+-----------------------------------+ | 12\. a. Draw an array that shows | 13\. a. Draw an array that shows | | 6 rows of 2. | 2 rows of 6. | | | | | b\. Write a multiplication | b\. Write a multiplication | | sentence where the first factor | sentence where the first factor | | represents the number of rows. | represents the number of rows. | | | | | \_\_\_\_\_\_\_\_ × | \_\_\_\_\_\_\_\_ × | | \_\_\_\_\_\_\_\_ = | \_\_\_\_\_\_\_\_ = | | \_\_\_\_\_\_\_\_ | \_\_\_\_\_\_\_\_ | +-----------------------------------+-----------------------------------+ 14\.   Ms. Nenadal writes 2 × 5 = 5 × 2 on the board. Do you agree or disagree? Draw arrays to help explain your thinking. 15\.   Mary Beth organizes stickers on a page in her sticker book. She arranges them in 3 rows and 4 columns. a\. Draw an array to show Mary Beth's stickers. --------------------------------------------------------------------------- --------------------------------------------------------------------------- b\. Use your array to write a multiplication sentence to find Mary Beth's c\. Use what you know about the commutative property to write a different total number of stickers. multiplication sentence for your array. --------------------------------------------------------------------------- --------------------------------------------------------------------------- 16\.   Draw an array or use a *count by* model to show that 2 x 6 = 12. 17\.   Use this model to explain how breaking an array into two parts might help you find the        answer for 7 x 3. A diagram of a number Description automatically generated with medium confidence 18\.   Ms. McCarty has 16 stickers. She puts 2 stickers on each homework paper and has no more left. How many homework papers does she have? Model the problem with an array or a labeled tape diagram. 19\.   There are 12 birds at the pet store. Two birds are in each cage. Circle to show how many cages there are. +-----------------------------------+-----------------------------------+ | | 12 ÷ 2 = \_\_\_\_\_\_\_\_\_\_  | | | | | | There are \_\_\_\_\_\_\_ cages of | | | birds. | +-----------------------------------+-----------------------------------+ 20\. Laina buys 14 meters of ribbon. She cuts her ribbon into 2 equal pieces. How many meters long is each piece? Label the tape diagram to represent the problem, including the unknown. -------------------------------------------------------------------------------------------- ------------------------------------------------- ![A diagram of a rectangular object Description automatically generated](media/image2.png) Each piece is \_\_\_\_\_\_\_\_\_\_ meters long. -------------------------------------------------------------------------------------------- ------------------------------------------------- 21\. Andrea has 21 apple slices. She uses 3 apple slices to decorate 1 pie. How many pies does Andrea make? Draw and label a tape diagram to solve. 22\. There are 24 soccer players on the field. They form 3 equal teams. How many players are on each team? 23\.   Arthur has 4 boxes of chocolates. Each box has 7 chocolates inside. How many chocolates does Arthur have altogether? Draw and label a tape diagram to solve. 24\.   Six folders are placed on each table. How many folders are there on 4 tables? Draw and label a tape diagram to solve. 25\.   Draw and label 2 tape diagrams to show that 4 × 3 = 3 × 4. Use your diagrams to explain how you know the statement is true. 26\.   Destiny says, "I can use 5 × 4 to find the answer to 8 × 4." Use the array below to explain Destiny's strategy using words and numbers. +-----------------------------------+-----------------------------------+ | | (8 x 4) = (5 x 4) + (3 x 4) | | | | | |         = \_\_\_\_\_\_\_ + | | | \_\_\_\_\_\_\_ | | | | | |         = \_\_\_\_\_\_\_ | +-----------------------------------+-----------------------------------+ 27\. Mr. Thomas organizes 16 binders into stacks of 4. How many stacks does he make? Draw and label a tape diagram to solve. 28\. The chef uses 28 avocados to make 4 batches of guacamole. How many avocados are in 2 batches of guacamole? Draw and label a tape diagram to solve. 29\. An art teacher has 40 paintbrushes. She divides them equally among her 4 students. She finds 8 more brushes and divides these equally among the students, as well. How many brushes does each student receive? -- -- -- -- 30\. Three friends go apple picking. They pick 13 apples on Saturday and 14 apples on Sunday. They share the apples equally. How many apples does each person get? 31\. The teacher has 12 green stickers and 15 purple stickers. Three students are given an equal number of each color sticker. How many green and purple stickers does each student get? 32.  Fill in the missing values. 4 x 1 = \_\_\_\_\_\_\_\_ 3 1 = \_\_\_\_\_\_\_\_ 10 x \_\_\_\_\_\_\_\_ = 20 2 x 3 = \_\_\_\_\_\_\_\_ -------------------------- ---------------------------- ---------------------------- --------------------------- 4 2 = \_\_\_\_\_\_\_\_ 2 x \_\_\_\_\_\_\_\_ = 4 155 = \_\_\_\_\_\_\_\_ 10 x 3 = \_\_\_\_\_\_\_\_ 3 x 3 = \_\_\_\_\_\_\_\_ 5 x  \_\_\_\_\_\_\_\_ = 15 164 = \_\_\_\_\_\_\_\_ 2 x \_\_\_\_\_\_\_\_ = 8 2 x 4 = \_\_\_\_\_\_\_\_ 124 = \_\_\_\_\_\_\_\_ 4 x \_\_\_\_\_\_\_\_ = 20 5 x 5 = \_\_\_\_\_\_\_\_ 15 3 = \_\_\_\_\_\_\_\_ 2 x \_\_\_\_\_\_\_\_ = 10 244 = \_\_\_\_\_\_\_\_ 10 x 6 = \_\_\_\_\_\_\_\_ a\. Fill in the missing [factor.] Write a sentence telling what it represents.  4 x \_\_\_\_\_\_\_ = 16 34\. Aanya packs the **1[6 bracelets]** into [boxes of 8.]  1. Draw a picture to show how many bracelet boxes Aanya packs. How many boxes of bracelets does she pack? [Don't forget to write your sentence.] b. Aanya sells **[16 necklaces]** and packs them into [boxes of 2.] Draw a picture to show how many necklace boxes Aanya packs. Don't forget to write your sentence. c. Draw an array to represent the amount of **bracelets** Aanya sells. Draw a **second** array to represent the amount of **necklaces** Aanya sells. Explain the relationship between the 2 arrays using **number sentences** and **words.** bracelet array Necklace Array ---------------- ---------------- Explain:  34\. Aimie likes cupcakes! For her birthday party, she decides to get 14 chocolate cupcakes (shown in o's) and 14 vanilla cupcakes (shown with x's). Shown below.  ooooooo ooooooo xxxxxxx xxxxxxx 1. Fill in the unknowns in the equation below to match the picture of the cupcakes above. Use the break apart and distribute strategy to find the total number of cupcakes Aimie has for her birthday party.  \_\_\_\_\_\_ x 7= (\_\_\_\_\_ x 7) + (\_\_\_\_\_ x 7) Aimie has \_\_\_\_\_\_\_\_ cupcakes.       b. Evan decides to bring Aimie **two** more rows of 7 **vanilla cupcakes** to the party.... Shown below. Fill in the unknowns in the equation below to match the new picture. Solve to find the total number of cupcakes. \_\_\_\_\_ x 7 = ( \_\_\_\_\_ x 7) + (\_\_\_\_\_ x 7)                         There are \_\_\_\_\_\_\_\_\_\_ cupcakes altogether. 35\. Mark decides to make his favorite lunch, grilled cheese! His recipe calls for 3 slices of cheese per one sandwich. He makes 6 sandwiches for the family on Friday.  1. How many cheese slices does Mark use to make the 6 sandwiches? **Draw a picture** and **write a multiplication sentence** to find the total number of cheese slices he uses for **6** grilled cheese sandwiches for Friday. b. Mark uses the equation 6 A black line with dots Description automatically generated3= \_\_\_ to figure out how many cheese slices he needs. Is his method correct? Why or why not? c. If he has a total of **32** cheese slices, how many are left after he makes the 6 grilled cheese sandwiches? d. Mark decides to make 5 more grilled cheese sandwiches on Saturday. What is the **total** number of cheese slices Mark used on both days? Draw a picture and **write a number sentence** to show how many cheese slices Mark used. 36\. Complete as many problems as you can in 100 seconds. Stop after 100 seconds. Good luck!  +-------------+-------------+-------------+-------------+-------------+ | 3 x 1 =  | 4 ![A black | 2 x | 2 x 4 =  | 12 A black | | | line with | \_\_\_\_ = | | line with | | | dots | 10 | | dots | | | Description | | | Description | | | automatical | | | automatical | | | ly | | | ly | | | generated]( | | | generated3 | | | media/image | | | = | | | 3.png) | | | | | | 1 =  | | | | +=============+=============+=============+=============+=============+ | 6 ![A black | 4 x 3 = | 20 A black | 10 x 4 = | 1 x \_\_\_ | | line with | | line with | | = 12 | | dots | | dots | | | | Description | | Description | | | | automatical | | automatical | | | | ly | | ly | | | | generated]( | | generated5 | | | | media/image | | = | | | | 3.png) | | | | | | 2 = | | | | | +-------------+-------------+-------------+-------------+-------------+ | 4 x 4 = | 3 x 3 = | 5 x \_\_\_ | 15 ![A | 10 x 2 = | | | | = 15 | black line | | | | | | with dots | | | | | | Description | | | | | | automatical | | | | | | ly | | | | | | generated]( | | | | | | media/image | | | | | | 3.png)3 | | | | | | = | | +-------------+-------------+-------------+-------------+-------------+ | 8 x 1 = | 8 A black | 12 ![A | 5 x 4 =  | 4 x 6 = | | | line with | black line | | | | | dots | with dots | | | | | Description | Description | | | | | automatical | automatical | | | | | ly | ly | | | | | generated4 | generated]( | | | | | = | media/image | | | | | | 3.png)4 | | | | | | = | | | +-------------+-------------+-------------+-------------+-------------+ | 16 A black | 14 ![A | 7 x 2 = | 18 A black | 3  x 5 = | | line with | black line | | line with | | | dots | with dots | | dots | | | Description | Description | | Description | | | automatical | automatical | | automatical | | | ly | ly | | ly | | | generated 8 | generated]( | | generated6 | | | = | media/image | | = | | | | 3.png) | | | | | | 7 = | | | | +-------------+-------------+-------------+-------------+-------------+ | 10 x 7 = | 10 x | 14 ![A | 3 x | 60 A black | | | \_\_\_\_ = | black line | \_\_\_\_ = | line with | | | 90 | with dots | 24 | dots | | | | Description | | Description | | | | automatical | | automatical | | | | ly | | ly | | | | generated]( | | generated | | | | media/image | | 10 = | | | | 3.png) | | | | | | 2 = | | | +-------------+-------------+-------------+-------------+-------------+ | 32 ![A | 10 x | 30 A black | 5 x 9 = | 5 x \_\_\_ | | black line | \_\_\_\_ = | line with | | = 30 | | with dots | 40 | dots | | | | Description | | Description | | | | automatical | | automatical | | | | ly | | ly | | | | generated]( | | generated | | | | media/image | | 10 = | | | | 3.png) | | | | | | 4 = | | | | | +-------------+-------------+-------------+-------------+-------------+ | 2 x 9 = | 3 x \_\_\_ | 5 x 10 = | 2 x 6 = | 14 ![A | | | = 21 | | | black line | | | | | | with dots | | | | | | Description | | | | | | automatical | | | | | | ly | | | | | | generated]( | | | | | | media/image | | | | | | 3.png) | | | | | | 1 = | +-------------+-------------+-------------+-------------+-------------+ | 4 x 7 = | 3 x 7 = | 21 A black | 20 | 20. A black | | | | line with | ![](media/i | line | | | | dots | mage3.png)4 | with | | | | Description | = | dots | | | | automatical | | Descrip | | | | ly | | tion | | | | generated 7 | | automat | | | | = | | ically | | | | | | generat | | | | | | ed | | | | | | 2 = | +-------------+-------------+-------------+-------------+-------------+ 1. Draw an array that represents Mrs. Tran's carrots.  Use an X to show each carrot. b. Mrs. Tran adds 3 more rows of 4 carrots to her garden.   - - - c. Find the total number of carrots Mrs. Tran planted. d. Write a multiplication sentence to describe the array representing the total number of carrots\ Mrs. Tran planted.   37\. Mrs. Tran picks 18 tomatoes from her garden.  She puts 6 tomatoes in each bag.  1. Draw Mrs. Tran's bags of tomatoes. b. Write a multiplication sentence that describes your drawing in Part (a). 39. Mrs. Tran plants 15 sunflowers in her garden.  She plants them in 3 rows. 1. Fill in the blanks below to make a true division sentence.  What does the answer represent? \_\_\_\_\_\_\_ ÷ \_\_\_\_\_\_\_ = \_\_\_\_\_\_\_ b. Mrs. Tran adds 2 more identical rows of sunflowers to her 3 original rows.  Draw an array to show how many flowers she has now.   c. Mrs. Tran figured out how many flowers she planted.  Her work is shown in the box below.  Would Mrs. Tran get the same result if she multiplied 5 × 5?  Explain why or why not. -- -- -- -- For numbers 1 and 2 round to the nearest ten. Label the number line and solve the problem.  +-----------------+-----------------+-----------------+-----------------+ | 38\) 53 ≈ | ![A black cross | 39\) 247 ≈ | A black cross | | \_\_\_\_\_ | on a white | \_\_\_\_ | on a white | | | background | | background | | A\) 50 | Description | A\) 250 | Description | | | automatically | | automatically | | B\) 55 | generated](medi | B\) 240 | generated | | | a/image4.png) | | | | C\) 60 | | C\) 200 | | | | | | | | D\) 63 | | D\) 300 | | +-----------------+-----------------+-----------------+-----------------+ For numbers 3 and 4 round to the nearest hundred. Label the number line and solve the problem. +-----------------+-----------------+-----------------+-----------------+ | 40\) 762 ≈ | ![A black cross | 41\) 1342 ≈ | A black cross | | ­\_\_\_\_\_\_ | on a white | \_\_\_\_\_\_\_ | on a white | | | background | | background | | A\) 700 | Description | A\) 1000 | Description | | | automatically | | automatically | | B\) 800 | generated](medi | B\) 1300 | generated | | | a/image4.png) | | | | C\) 750 | | C\) 1400 | | | | | | | | D\) 760 | | D\) 1350 | | +-----------------+-----------------+-----------------+-----------------+   42\) Joseph finished his homework at 3:47 pm. Round the time to the nearest ten minutes. +-----------------------------------+-----------------------------------+ | ![A clock with a blue and red | A\) 3:40 | | hand Description automatically | | | generated](media/image5.png) | B\) 3:45 | | | | | | C\) 3:50 | | | | | | D\) 4:00 | +-----------------------------------+-----------------------------------+ 43\) Circle the NUMBERS that round to 600. 44)  Javier visits his doctor for a checkup. He the doctor's scale says Javier weighs 53 kilograms. What is Javier's weight rounded to the nearest 10 kilograms? +-----------------------------------+-----------------------------------+ | A clock with numbers and a red | A\) 50 kg | | needle Description automatically | | | generated | B\) 55 kg | | | | | | C\) 60 kg  | +-----------------------------------+-----------------------------------+ 45). It takes Greg 15 minutes to mow the front lawn. It takes him 17 more minutes to mow the back lawn than the front lawn. What is the total amount of time Greg spends mowing the lawns? 46\)   Find the sums below. Show your work. +-----------------------+-----------------------+-----------------------+ | a\) 46 mL + 5 mL = | b\) 47m + 8m = | c\) 345 g + 294 g = | | | | | | \_\_\_\_\_\_\_\_\_\_\ | \_\_\_\_\_\_\_\_\_\_\ | | | _ | _ | | +-----------------------+-----------------------+-----------------------+ 47.)  Sue bakes mini-muffins for the school bake sale. After wrapping 86 muffins, she still has 58 muffins left cooling on the table. How many muffins did she bake altogether? 48.)   Find the sums. +-----------------------+-----------------------+-----------------------+ | 1. 78 g + 29 g | b. | c. | +-----------------------+-----------------------+-----------------------+ 49). The total length of a jump rope is 408cm. Chloe cuts the jump rope into three pieces. The first two pieces are 187 centimeters altogether. How long is the third section? A\) 321 centimeters B\) 572 centimeters C\) 582 centimeters D\) 221 centimeters 50). 2) The total weight of three candles is 405g. If two of the candles weigh 233 grams, how much does the third candle weigh? A\) 172 grams B\) 192 grams C\) 638 grams D\) 132 grams

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