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?
- $5.04
- $8.04
- $7.04
- $6.04 (correct)
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?
- 1.95 centimeters
- 1.29 centimeters (correct)
- 1.25 centimeters
- 2.29 centimeters
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?
- 39.6 meters
- 40.8 meters
- 42.0 meters
- 44.4 meters (correct)
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?
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?
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?
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?
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?
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?
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?
Flashcards
Adding to find total cost
Adding to find total cost
To determine the overall expense by combining the prices of individual items.
Subtracting to find difference
Subtracting to find difference
Finding the difference in length or quantity by subtracting the initial measurement from the final measurement.
Equivalent fraction
Equivalent fraction
Fractions representing the same portion or part of a whole, although written differently.
Simplest Form of a fraction
Simplest Form of a fraction
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Multiply to find many of something
Multiply to find many of something
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Calculating fraction of students
Calculating fraction of students
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Find pizza slices left
Find pizza slices left
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Find the length difference
Find the length difference
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Calculating the total amount
Calculating the total amount
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Finding a multiple
Finding a multiple
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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.
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