2.5a & 2.5b Division using Estimation - Grade 5

Front

What is estimation in division?

Back

Estimation in division is a method used to find an approximate answer by rounding the numbers to make the division easier.

Front

How do you estimate 98 / 17?

Back

A quick way to estimate 98 / 17 is to round it to 100 / 20.

Front

What is the estimated division for 95 / 31?

Back

You can estimate 95 / 31 by rounding it to 90 / 30.

Front

What is the estimated division for 81 / 19?

Back

You can estimate 81 / 19 by rounding it to 80 / 20.

Front

What does R stand for in division?

Back

R stands for 'remainder', which is the amount left over after division.

Front

What is the actual division of 70 / 20?

Back

The actual division of 70 / 20 is 3 R.10.

Front

What is the actual division of 88 / 40?

Back

The actual division of 88 / 40 is 2 R.8.

Front

What is a quick way to estimate division problems?

Back

A quick way to estimate division problems is to round the numbers to the nearest ten or hundred.

Front

Why is estimation useful in division?

Back

Estimation is useful in division because it helps to quickly assess the size of the answer without doing exact calculations.

Front

What is the estimated division for 150 / 25?

Back

You can estimate 150 / 25 by rounding it to 150 / 30, which simplifies to 5.