Use this rule to do these problems:
If 210 is doubled, what power of 2 do we get?
Double of 210
= 2 × 210
= 2(1 + 10) {xm× xn = x(m + n)}
= 211
Thus, if 210 is doubled, we get 11 powers of 2.
If 25 is multiplied by 23, what power of 2 do we get?
What does 102 × 105 mean?
If we divide 25 by 23, what power of 2 do we get?