Multiply the following numbers by 10, 100 and 1000 to complete the table. Class 7
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Multiply the following numbers by 10, 100 and 1000 to complete the table. Class 7
Question 1.
Multiply the following numbers by 10, 100 and 1000 to complete the table. Class 7
| × 10 | × 100 | × 1000 | |
| 5.7 | |||
| 23.02 | |||
| 0.92 | |||
| 0.306 | |||
| 24.67 |
Solution:
| × 10 | × 100 | × 1000 | |
| 5.7 | 57 | 570 | 5700 |
| 23.02 | 230.2 | 23.02 | 2.302 |
| 0.92 | 9.2 | 92 | 920 |
| 0.306 | 3.06 | 30.6 | 306 |
| 24.67 | 246.7 | 2467 | 24670 |
Question 2.
What is 0.039 m in centimetres and millimetres?
Solution:
0.039 m = 3.9 centimetres
and 0.039 m = 3.9 × 10 = 30 millimetres.
Question 3.
Suppose we want to write the quotient [latex]\frac {10}{3}[/latex] as a decimal. Can we convert this fraction to an equivalent fraction with a denominator such as 1, 10, 100, 1000, etc.? Class 7
Solution:
No, because 3 is not a factor of 1, 10, 100, 1000, etc.