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Questions and Answers

How much will you pay for 6 kilos of rice at a price of 45 pesos per kilo?

  • 350 pesos
  • 450 pesos
  • 300 pesos
  • 270 pesos (correct)

What is the result of dividing 50 by 7?

  • 7 remainder 1 (correct)
  • 8 remainder 6
  • 7 remainder 2
  • 6 remainder 5

If Venus sold 5 sacks of watermelons for Php 1,575, how much does each sack cost?

  • 250 pesos
  • 315 pesos (correct)
  • 300 pesos
  • 320 pesos

If there are 129 students divided into 3 sections, how many students will be in each section?

<p>43 (B)</p> Signup and view all the answers

What is the simplest operation to find the total number of erasers in 6 boxes, each containing 12 erasers?

<p>Multiplication (C)</p> Signup and view all the answers

How many mangoes did Nang Tonya pick in total from both trees?

<p>390 (B)</p> Signup and view all the answers

What is the product of 6 and 7?

<p>42 (A)</p> Signup and view all the answers

Which option represents the correct division sentence for the multiplication sentence 9 x 4 = 36?

<p>36 ÷ 4 = 9 (D)</p> Signup and view all the answers

What is the estimated product of 578 and 63?

<p>36,000 (D)</p> Signup and view all the answers

How many baskets are needed if a businessman wants to place 100 mangoes in each basket from a total of 900 mangoes?

<p>9 (C)</p> Signup and view all the answers

What is another term for repeated addition?

<p>Multiplication (D)</p> Signup and view all the answers

Flashcards

Multiplication

Repeated addition of the same number.

Product

The answer in a multiplication problem.

Commutative Property of Multiplication

The order of factors in a multiplication problem does not change the product.

Multiples

The product of a number and any whole number.

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Division

The inverse operation of multiplication, finding how many times one number goes into another.

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Estimate

A roughly calculated value, often a simplified version of the real answer.

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Addition

Combining two or more numbers to find the total.

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Subtraction

Finding the difference between two numbers.

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Word Problem Steps

To solve word problems, follow these steps: 1. Understand the problem: Read carefully and identify what needs to be found. 2. Plan the solution: Decide which operation(s) to use (addition, subtraction, multiplication, division). 3. Solve the problem: Perform the operation(s) correctly. 4. Check the answer: Make sure your answer makes sense in the context of the problem.

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Division with Remainder

Division with a remainder occurs when a number cannot be divided evenly. The remainder is the amount left over after dividing as many times as possible.

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Total Cost

The total cost is the sum of all the prices of items bought.

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Equal Sharing

When something is shared equally, we divide the total amount by the number of people sharing.

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Easiest Operation

To solve problems involving groups and items, we can use the easiest operation based on the context. Multiplication is used when we have groups of equal size, while division is used when we have a total to divide into equal groups.

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Study Notes

Review (Math)

  • Problem 1: 1224 men and 822 women lined up for a flag ceremony. How many people were there in total? Solution: 2046
  • Problem 2: Jojo had 275 pieces of paper. He used 156. How many are left? Solution: 119
  • Problem 3: Tonya picked 130 mangoes on one tree. She picked twice that amount on another tree. How many mangoes in total did she pick? Solution: 390
  • Problem 4: What is the missing number in the series 28, 35, 42, 56, 63? Solution: 49
  • Problem 5: Repeated addition is also known as? Solution: Multiplication
  • Problem 6: What is the answer to a multiplication problem called? Solution: Product
  • Problem 7: Which numbers multiplied together equal 42? Solution: 6 x 7 = 42
  • Problem 8: Which example shows commutative property of multiplication? Solution: 7 x 8 = 8 x 7
  • Problem 9: A school received 75 boxes of soap. Each box costs Php23. What is the total cost? Solution: Php1725
  • Problem 10: 25 x 100 = ? Solution: 2500
  • Problem 11: A year has 7 days a week and 52 weeks. How many days are in a year? Solution: 364
  • Problem 12: What are the next three multiples after 15, 18? Solution: 21, 24, 27
  • Problem 13: Which numbers are multiples of 10? Solution: 40, 50, 60, 70, 80, 90
  • Problem 14: There are 28 avocados in each basket. How many avocados are in 9 baskets? Solution: 252
  • Problem 15: Convert 75 + 5 = 15 to a multiplication sentence. Solution: 15 x 5 = 75
  • Problem 16: Which number is a multiple of 30? Solution: 90
  • Problem 17: What is the division sentence for 9 x 4 = 36? Solution: 36 ÷ 4 = 9
  • Problem 18: A vendor has 900 mangoes. How many baskets are needed if each basket holds 100 mangoes? Solution: 9
  • Problem 19: 215 liters of alcohol are distributed among 42 barangays. Approximate amount of alcohol each barangay receives. Solution: 5 liters
  • Problem 20: Neil collected 235, and Mark collected 520. They used 99 for their toys. Remainder is shared with 4 friends. How much each friend gets? Solution: 164
  • Problem 21: Estimate the product of 578 and 63. Solution: 36000
  • Problem 22: 3 kilos of rice at Php50 per kilo. Total cost? Solution: Php150
  • Problem 23: 19 x 3 = ? Solution: 57
  • Problem 24: Gng. Cruz bought 6 kilos of rice (Php45/kilo) and 5 tins of sardines (Php19/tin). Total cost? Solution: Php365
  • Problem 25: Math Club sold 55 kilos of recycled paper (Php7/kilo) and 210 bottles (Php1/bottle). Total earning? Solution: Php595
  • Problem 26: 80 Notebooks distributed among 10 students. Notebooks each student has? Solution: 8
  • Problem 27: 50 divided by 7. What is the remainder? Solution: 1
  • Problem 28: 18 apples shared among 6 children. How many apples per child? Solution: 3
  • Problem 29: If Tito gives Php90 to two children as equal parts, how much does each child get? Solution: Php45
  • Problem 30: Venus sold 5 sacks of watermelon and earned Php1575. How much per sack? Solution: Php315
  • Problem 31: 129 Grade 3 students are divided among 3 sections. Students per section? Solution: 43
  • Problem 32: 6 boxes with 12 erasers each. Total erasers? Solution: 72
  • Multiplication: A key concept in several problems involving repeated addition or calculation of total amounts.

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