Question

APPROXIMATING A LARGE NUMBER

Round the number. Write the result as a product of a single digit and a power of $10$.

$1,003,111,391,008$

Answer 1

$1,003,111,391,008\approx 1,000,000,000,000$ (Rounding off the number to the closest $1,000,000,000,000$)

$1,000,000,000,000=1\times 1,000,000,000,000$ (Factor out $1$)

$1\times 1,000,000,000,000=1\times {10}^{12}$ (Writing $1,000,000,000,000$ as power of $10$)

Hence, the final result is $1\times {10}^{12}$.