Question

What digit is in the

Answer 1

Rounding off 71 to the nearest 10 will be 70

rounding off 98 to the nearest 10 will be 100

Estimating the product will be 70 * 100 ≈ 7000

Now lets do the actual calculation :

71 x 98 =6958

This is much nearer to 7000

Extra notes: any number below 5 , go down to the nearest 10.

Example : 71 ≈70

Any number that is 5 or higher, go up to the nearest 10

Example 98 ≈100