Podcast
Questions and Answers
How much did Cash spend altogether if he bought milk for $3.59 and bread for $4.45?
How much did Cash spend altogether if he bought milk for $3.59 and bread for $4.45?
If Sam's pencil originally measured 16.25 centimeters and now measures 14.96 centimeters, how much of the pencil did he use?
If Sam's pencil originally measured 16.25 centimeters and now measures 14.96 centimeters, how much of the pencil did he use?
How many total meters of fabric does Grace need if she has 7.4 meters and needs six times that amount?
How many total meters of fabric does Grace need if she has 7.4 meters and needs six times that amount?
What is the simplest fraction of students that scored an A if you and 4 of your 24 classmates earned an A?
What is the simplest fraction of students that scored an A if you and 4 of your 24 classmates earned an A?
Signup and view all the answers
If you eat three slices of a medium pizza with 12 slices, how many slices of pizza are leftover?
If you eat three slices of a medium pizza with 12 slices, how many slices of pizza are leftover?
Signup and view all the answers
What is the simplest fraction representation for the leftover slices of pizza after eating three out of twelve?
What is the simplest fraction representation for the leftover slices of pizza after eating three out of twelve?
Signup and view all the answers
If 4 students out of 24 earned an A, what is the ratio of students who earned an A to those who didn't?
If 4 students out of 24 earned an A, what is the ratio of students who earned an A to those who didn't?
Signup and view all the answers
When solving for total fabric needed by Grace, how would you properly express the calculation when needing six times the amount?
When solving for total fabric needed by Grace, how would you properly express the calculation when needing six times the amount?
Signup and view all the answers
If the length of the pencil decreased from 16.25 centimeters to 14.96 centimeters, what mathematical operation will determine how much was used?
If the length of the pencil decreased from 16.25 centimeters to 14.96 centimeters, what mathematical operation will determine how much was used?
Signup and view all the answers
What is the total amount spent by Cash if he bought two items costing $3.59 and $4.45?
What is the total amount spent by Cash if he bought two items costing $3.59 and $4.45?
Signup and view all the answers
Study Notes
Chapter 3 Test Review
-
Adding and Subtracting Decimals:
- Line up decimal points vertically.
- Add zeros as needed for place value alignment.
- Bring down the decimal point in the answer.
- Follow standard addition/subtraction rules.
-
Multiplying Decimals:
- Line up numbers vertically, ignoring the decimals.
- Multiply as if numbers were whole numbers.
- Count the total number of decimal places in both numbers.
- Place the decimal point in the product so that the total number of decimal places matches the count.
-
Multiplying Fractions:
- Multiply the numerators (top numbers).
- Multiply the denominators (bottom numbers).
- Simplify the resulting fraction (if possible).
- If multiplying a fraction by a whole number, write the whole number as a fraction with a denominator of 1. Then multiply the numerators and denominators.
-
Dividing Fractions:
- Use the "keep, change, flip" method.
- Keep the first fraction as is.
- Change the division sign to multiplication.
- Flip (reciprocate) the second fraction.
- Multiply the fractions.
- Simplify the resulting fraction (if possible).
Practice Problems (Addition/Subtraction)
- 800.54 + 90.52 = 891.06
- 343.4 + 5.607 = 349.007
- 94.9 - 41.871 = 53.029
- 809.144 - 15.96 = 793.184
- 803.309 - 133.36 = 670.009
- 767.3 - 24.9 = 742.4
- 489.08 – 4.2 = 484.88
- 921.74 + 2.7 = 924.44
- 384.94 + 17.348 = 402.288
- 260.65 – 40.9 = 219.75
- 67.1 - 1.19 = 65.91
- 35.438 - 17.2 = 18.238
- 686.4 – 199.61 = 486.79
- 6.356 + 5.8 = 12.156
Practice Problems (Multiplication)
- 0.9 * 0.7 = 0.63
- 0.4 * 0.03 = 0.012
- 0.2 * 0.5 = 0.1
- 0.5 * 0.6 = 0.3
- 1.0 * 0.05 = 0.05
- 0.7 * 0.8 = 0.56
- 0.5 * 0.5 = 0.25
- 0.7 * 0.03 = 0.021
- 0.3 * 0.07 = 0.021
- 0.2 * 0.06 = 0.012
- 0.6 * 0.08 = 0.048
- 0.8 * 0.1 = 0.08
- 0.2 * 0.10 = 0.02
- 0.4 * 0.2 = 0.08
- 0.7 * 0.2 = 0.14
- 0.6 * 0.7 = 0.42
Word Problems
- Grocery Shopping: Cash spent $3.59 + $4.45 = $8.04
- Pencil Length: Sam used 16.25 cm - 14.96 cm = 1.29 cm of the pencil
Additional Topics
- Equivalent Fractions: Simplifying fractions to their simplest forms. Examples provided.
- Fractions: Simplifying fractions, adding, subtracting, multiplying, dividing fractions. Problems of various types.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
