Estimation
Estimation
Decimal by one digit
Decimal by one digit (harder)
Word Problems
100

11.3 ÷ 2

12 ÷  2 = 6

100

Estimate the product

3.9 x 1.1

4 x 1 = 4

100

Find the product

3.5 x 4 

14

100

Find the product

31.4 x 3

94.2

100

Mrs. Knight has to feed the third grade class pet. If she needs to eat 24 oz of food but only ate 0.8 of it. How Much food did the class pet eat? 

19.2 oz

200

34.55 ÷ 6

30 ÷ 6 = 5

200

Estimate the product

4.93 x 3.1

5 x 3 = 15

200

Find the product 

5.2 x 6

31.2

200

Find the product

41.42 x 2

82.82

200

Drake is at a baseball game with his friends. His favorite picture threw 5 pitches. However, he was successful 0.3 of his attempts. How many of his pitches were a success?   

1.5 pitches 

300

47.9 ÷  9 =

45 ÷  9 = 5

300

Estimate the product

158.7 x 2.8

200 x 3 = 600

or 160 x 3 = 480

or 159 x 3 = 477

300

Find the product

4.5 x 8

36

300

9.52 x 7

66.64

300

Quinton buys 5 packs of markers and each pack cost $1.45. How much does he spend in total?

Quinton spends $7.25

400

86.45 ÷ 8 =

88 ÷ 8 = 11

400

Estimate the following 

89.5 x 91.2

90 x 90 = 8,100

400

Find the product

7.6 x 7

53.2

400

Find the product

87.65 x 8

701.20

400

A farmer is building a fence around four equal sections of his field. Each section requires 25.4 feet of fencing. How many feet of fencing does he need in total?

The farmer needs 101.6 feet of fencing in total. 

500

122.32 ÷ 6 =

120 ÷ 6 = 20



500

Estimate the following product

2.7 x 3.7 x 1.8 x 3.1

 3 x 4 x 2 x 3 =72

500

Find the product 9.7 x 9

87.3

500

Find the product

9.999 x 9

89.991

500

A bakery sells cookies in small packs. Each pack weighs 0.432 pounds. If a customer buys 8 packs, what is the total weight of the cookies?

The total weight of the cookies is 3.456 pounds.