Question

What is the estimate of 827 times 4 ?

Answer 1

`827 * 4 \approx820 * 4`

`820 * 4 = 800 * 4 + 20 * 4 \\ 820 * 4 = 3200 + 80 \\ 820 * 4 = 3280`

`827 * 4 \approx3280`

In reality it's just that additional 4 sevens,so

`827 * 4 = 820 * 4 + 4 * 7 \\ 827 * 4 = 3280 + 28 \\ 827 * 4 = 3308`

Answer 2

3,308

Explanation:

the internet said that 3,308 was the answer.