Decimals Add and Subtract Ms.Doaa

Adding Decimals

100

 10.30 + 11.50

 21.80

200

13.62 + 16.27

 29.89

300

52.36 + 44.63

 96.99

400

107.46 + 73.44

 180.90

500

 654.22 + 325.67

 979.89

Subtracting decimals

100

 13.62 - 11.41

 2.21

200

37.16 - 6.06

 31.10

300

 93.62 - 42.61

 51.01

400

 117.37 - 102.24

 15.13

500

 792.69 - 202.34

590.35

Find the sum

100

Find the sum 11.66 + 9.41

 21.07

200

Find the sum 29.40 + 14.62

44.02

300

Find the sum 92.99 + 7.01

 100

400

  Find the sum  147.82 + 196.43

344.25

500

 Find the sum   792.67 + 208.33

1,001

Find the difference

100

Find the difference 18.32 - 14.54

 3.78

200

Find the difference  44.52 - 34.73

9.79

300

Find the difference  87.66- 19.74

 67.92

400

Find the difference 192.17 - 117. 58

What is 74.59

500

Find the difference 946.89 - 767.94

What is 178.95

Word Problems

100

Emma buys a sandwich for $5.75 and a drink for $2.45.
How much does she spend in total?

$8.20

200

A piece of ribbon is 12.6 meters long. Sarah cuts off 4.85 meters.
How much ribbon is left?

7.75 meters

300

Jake fills his car with 9.45 gallons of gas one week and 7.8 gallons the next week.
How many gallons of gas did he buy in total?

17.25 gallons

400

Three pears weigh 5.67 ounces, 4.25 ounces, and 6.13 ounces.
What is the difference between the weights of the heaviest pear and the lightest pear?

1.88 ounces

500

Maria buys a pair of shoes that costs $72.40. She has a store coupon for $8.25 off.
Maria says that the cost with the coupon is $64.05.
Explain Maria’s error and find the correct cost.

Maria subtracted incorrectly and got $64.05 instead of $64.15. She likely made a mistake with place value when subtracting the cents. 

$64.15