Chapter 3 Review

Chapter 3 Review

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Multiple Choice

When adding and subtracting decimals, what is something that you HAVE to do?

• Line up the numbers

• Line up the decimal points

Multiple Choice

Find the sum.

56.16 + 12.78

• 75.23

• 56.78

• 60.94

• 68.94

Multiple Choice

Find the sum.

9.9 + 6.5

• 16.4

• 13.4

• 12.4

• 17.4

Multiple Choice

Find the sum.

10.32 + 7.4

• 15.45

• 17.72

• 16.9

• 13.56

Multiple Choice

Find the difference.

19.78 - 3.9

• 13.57

• 17.89

• 14.5

• 15.88

Multiple Choice

Find the difference.

85.73 - 46.85

• 38.88

• 42.3

• 15.2

• 5.9

Multiple Choice

Find the difference.

5.2 - 3.1

• 7.2

• 2.2

• 4.0

• 2.1

Multiple Choice

Round each number to the nearest whole number. What is the estimated sum?

32.45 + 8.94

• 39

• 40

• 41

• 42

Multiple Choice

Round each number to the nearest whole number. What is the estimated difference?

57.8 - 34.25

• 65

• 25

• 26

• 24

Multiple Choice

Find the sum of the three decimals.

17.18 + 6.5 + 9.34

• 23.02

• 36.7

• 33.02

• 33.00

How to write money amounts

• With a dollar sign ($) before the amount. Example: $25.67

• With a decimal point between the dollar amount and the change amount. Example: $6.75 or $8.00

• ALWAYS with TWO place values after the decimal point. Example: $34.50 NOT $34.5 OR $56.00 NOT $56

Multiple Choice

Wonder Woman goes to the grocery store and spends $31.79. She pays the cashier with a 50 dollar bill. What will her change be?

• $18.21

• $16.78

• $18.00

• $8.96

Multiple Choice

Captain America went out for lunch. He bought an iced tea for $2.79, a sandwich for $6.93, and a bag of popcorn for $3.23. He paid the cashier with a 20 dollar bill. How much change did he receive?

• $8.05

• $23.56

• $6.98

• $7.05