Estimate the quotient

~6 min

Round the divisor and dividend to nearby friendly numbers.

Rounding to Friendly Numbers

10203040506070809010080/1

To estimate a quotient, round the dividend and the two-digit divisor to the nearest tens or hundreds to create friendly numbers that are easy to divide mentally.

💡 Look for numbers that are multiples of 10, like 20, 50, or 100.