Addition and Subtraction of Decimals Worksheet

**Page 1**

1.

Sandra bought an envelope for $0.35 and a greeting card for $9.50. Which operation could be used to find the money spent by Sandra on the envelope and the greeting card?

a. | addition | ||

b. | division | ||

c. | multiplication | ||

d. | subtraction |

So, the money spent by Ursula on envelope and greeting card can be found using the operation addition.

Correct answer : (1)

2.

Frank walked 3.1 miles in the morning and 2.8 miles in the evening. How many miles did he walk in all?

a. | 5.9 miles | ||

b. | 4.9 miles | ||

c. | 3.8 miles | ||

d. | 5.5 miles |

= 3.1 + 2.8 = 5.9

[Substitute the values and add.]

So, Frank walked 5.9 miles.

Correct answer : (1)

3.

Charlie went shopping with $55.75. He spent $28.50. How much money was he left with?

a. | $17.25 | ||

b. | $12.25 | ||

c. | $27.35 | ||

d. | $27.25 |

= $55.75 - $28.50 = $27.25

[Susbtitute the values and subtract.]

So, the money left with Charlie was $27.25.

Correct answer : (4)

4.

Sheela has $$m$. She bought books for $$b$, ate an icecream for $5.75 and her mother gave $7.50. Which equation can be used to find the amount, $a$, she is left with?

a. | $a$ = $m$ - ($b$ - 5.75) + 7.50 | ||

b. | $a$ = $m$ - ($b$ + 5.75) + 7.50 | ||

c. | $a$ = $m$ + ($b$ + 5.75) + 7.50 | ||

d. | $a$ = $m$ - ($b$ + 5.75) - 7.50 |

The money spent on books = $

The money spent on icecream = $5.75

The money given by her mother = $7.50

The amount left with Sheela = money she has - (money spent on books + money spent on icecream) + money given by her mother

So, the equation that can be used to find the amount left with Sheela is

Correct answer : (2)

5.

John walked 1.5 miles on Monday, 1.7 miles on Tuesday, 1.3 miles on Wednesday. How many miles did he walk in all?

a. | 5.3 miles | ||

b. | 3.5 miles | ||

c. | 6.5 miles | ||

d. | 4.5 miles |

= 1.5 + 1.7 + 1.3

= 4.5 miles.

Correct answer : (4)

6.

Nick bought a shirt for $14.66. He gave the clerk $20. How much change should he get?

a. | $5.34 | ||

b. | $5 | ||

c. | $34.66 | ||

d. | $6.34 |

= 20 - 14.66

So, Nick gets a change of $5.34.

Correct answer : (1)

7.

When Johnny read the thermometer this morning, it was 53° F. At 5 p.m., the temperature was 98.5°F. What was the increase in the temperature?

a. | 45.5° | ||

b. | 35.5° | ||

c. | 55.5° | ||

d. | 151.5° |

98.5°F - 53°F = 45.5°

So, the temperature increased by 45.5°.

Correct answer : (1)

8.

John bought a pizza for $10.50. He paid $15. How much change should he get?

a. | $4.45 | ||

b. | $5 | ||

c. | $6.50 | ||

d. | $4.50 |

Correct answer : (4)

9.

Find the sum statement for the model.

a. | 0.12 + 0.38 | ||

b. | 0.38 + 0.12 | ||

c. | 0.11 + 0.15 | ||

d. | 0.21 + 0.13 |

So, the sum statement represented by the two models = 0.12 + 0.38

Correct answer : (1)

10.

Pick the appropriate sum statement that represents the model shown.

a. | 0.4 + 0.3 | ||

b. | 0.4 + 0.03 | ||

c. | 0.04 + 0.03 | ||

d. | 0.04 + 0.3 |

The combined model represents 0.4 + 0.3.

Correct answer : (1)