OPERATIONS WITH DECIMALS WORKSHEET

Add and subtract the following decimals

Questions :

1)  0.8 + 0.23

2)  0.17 + 1.36

3)  0.076 + 0.61

4)  11.56 + 8.072

5)  2.6 – 1.7

6)  1 – 0.3

7)  3.2 – 0.65

8)  1.00 – 0.99

Answers :

1)  1.03

2)  1.53

3)  0.686

4)  19.632

5)  0.9

6)  0.7

7)  2.55

8)  0.01

Solution

9)  38.76, 132.8 and 9.072

10)  18.61, 236.9 and 1072.4

11)  8.615 from 19.837

12)  14.86 from 28.79

13)  A 20 m length of rope is cut into 4 pieces. Three of the pieces have lengths 5.62 m, 8.05 m, and 2.6 m. Find the Length of the fourth pieces.

14)  A weightlifter snatches 135.8 kg, 142.9 kg, and 153.7 kg in consecutive lifts. Find the total mass lifted.

Solution

Answers :

9)  180.632

10)  1327.91

11)  11.222

12)  13.93

13)  3.73 m

14)  432.4 kg

Multiply the following decimals

Questions :

1)  38 x 10

2)  9 x 100

3)  3.2 x 10

4)  0.8 x 10

5)  0.71 x 100

6)  2.8 x 100

7)  0.6 x 100

8)  0.83 x 100

9)  1.89 x 104

10)  0.053 x 103

11)  0.0583 x 1000

12)  0.187 x 100000

Answers :

1)  380

2)  900

3)  32

4)  8

5)  71

6)  280

7)  60

8)  83

9)  18900

10)  53

11)  58.3

12)  18700

Solution

Divide the following decimals

Questions :

1)  89 ÷ 10

2)  463 ÷ 10

3)  463 ÷ 1000

4)  463 ÷ 10000

5)  0.8 ÷ 1000

6)  0.73 ÷ 100

7)  0.07 ÷ 100

8)  0.083 ÷ 1000

9)  0.0028 ÷ 10000

10)  0.00051÷10000

Answers :

1)  8.9

2)  46.3

3)  0.463

4)  0.0463

5)  0.0008

6)  0.0073

7)  0.0007

8)  0.000083

9)  0.00000028

10)  0.000000051

Solution

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