Question

Write the following as powers of ten with one figure before the decimal point:
i. 100 000
ii. 3500
iii. 428 000 000
iv. 504
v.27 056

Answer 1

Explanation:

1. 1× 10^5

2. 3.5 × 10^3

3. 4.28 × 10^8

4. 5.04 × 10^2

5. 2.7056 × 10^4

Answer 2

As per the question we have to keep 1 figure before the decimal point.

i. 100000: Here the number can be written as 1 × 10⁵

                As there are 5 zeroes after we will raise 5 to the power 10

ii. 3500: It can be written as 3.5 × 10³

iii. 428000000: It can be written as 4.28 × 10⁸

iv. 504: It can be written as 5.04 × 10²

v.27 056: It can be written as 2.7056 × 10⁴, this is because we will have to move the decimal point 4 times towards the right to get the given number.