Question

By rounding to one significant number, estimate the answer to these questions:

a) 687x164
b) 476x2354
c) 8612x1497

Answer 1

a) 140000

b) 1000000

c) 9000000

Explanation:

a) 687x164

700 * 200 =140000

b) 476x2354

500*2000=1000000

c) 8612x1497

9000*1000=9000000