Decimals

Converting

100

Convert decimal into fraction

0.14

7/50

200

Convert fraction into decimal

3/4

0.75

300

Convert decimal into fraction

5.25

5 1/4

400

Convert mixed number into decimal 

6 9/25

6.36

Rounding off

100

Round off decimal to the nearest tenth

13.941

13.9

200

Round off decimal to the nearest hundredth

2.745

2.75

300

Estimate the sum by the rounding to the nearest whole number

37.213 + 11.731

49

400

Estimate the difference by the rounding to the nearest tenth

17.365 - 9.217

8.2

Multiplying decimals

100

1.46 x 4

5.84

200

3.14 x 12

37.68

300

4.37 x 1.8

7.866

400

13.2 x 25.3

333.96

Dividing decimals

100

7.38 ÷ 6

1.23

200

3.384 ÷ 12                

0.282

300

83.125 ÷ 25                

3.325

400

229.632 ÷ 16

14.352

Word problem

100

A carton of milk cost 12.25 Baht. How much do 7 cartons of milk cost? 

12.25 x 7

85.75

200

8.96 kg of flour is needed to make 9 similar cakes. How much flour is needed to make a cake? 

8.96 ÷ 8

1.12

300

A container has 3.17 liters of cooking oil in it. Mother uses 1.29 liters of the oil. Then she adds another 1.65 liters of cooking oil into the container. How much cooking oil is left in the container? 

3.17 - 1.29 + 1.65

3.53

400

Teacher bought 8.09 kg of strawberry candies and 3.19 kg of lemon candies. He mixed them together and divided equally among 24 students. How many kilograms of candies did each student get? 

(8.09 + 3.19) ÷ 24

0.47