Grade 7 - Operation of Decimal Numbers

2. OPERATION
OF DECIMAL
NUMBERS

3. Decimals are one of the types of
numbers, which has a whole
number and the fractional part
separated by a decimal point.
DECIMAL NUMBER

4. ADDITION OF DECIMAL
NUMBER
1. Add 0.005 + 9.684
2. Add: 2.6125 + 10.04
3. Add: 34.095 + 8.68
4. Add: -34.95 +0.68

5. SUBTRACTION OF
DECIMAL NUMBER
1. Subtract: 37.428 – 10.634
2. Subtract: 16.4831 – 3.121
3. Subtract: 65.030 – 26.732
4. Subtract: 65.0300 – 2.6732

6. MULTIPLICATION OF
DECIMAL NUMBER
1. Multiply: 3.24 x 0.56
2. Multiply: 6.25 x (-8.6)
3. Multiply: -6.25 x (-1.09)

7. DIVISION OF DECIMAL
NUMBER
1. Divide: 8.4 ÷ 0.2
2. Divide: 150.90 ÷ 1.5
3. Divide: 210.15 ÷ 0.5

9. Solve the following:
ACTIVITY
ANSWER
1. 5.84 + 3.81
2. 81.458 + 4.079
3. 129.08 – 3.52
4. 35.33 – 7.58
5. 78.5 x 3.08

10. Solve the following:
ACTIVITY
ANSWER
6. 6.25 x 0.42
7. 68.9 x 54
8. 83.4 x 2.8
9. 8.8 ÷ 0.2
10. 10.5 ÷ 0.5

11. Thank
you!!