Question

Work out ( 4 × 10 6 ) × ( 2 × 10 7 ) Give your answer in standard form.

Answer 1

8 × 10¹³

Explanation:

=>
`(4*10^6)*(2*10^7)`

=>
`(4*2)*(10^6*10^7)`

When bases are same, powers are to be added.

=> 8 × 10 ⁶⁺⁷

=> 8 × 10¹³