Estimate differences
Learn with an example
🎯 Estimate the difference by rounding each number to the nearest hundred and then subtracting.
862 − 282 =
The difference is approximately _____.
Round each number to the nearest hundred.
862 − 282 = ?
900 − 300 = ?
Now subtract:
900 − 300 = 600
The difference is about 600.
🎯 Estimate the difference by rounding each number to the nearest hundred and then subtracting.
397 – 104 =
The difference is approximately _____.
Round each number to the nearest hundred.
397 − 104 = ?
400 − 100 = ?
Now subtract:
400 − 100 = 300
The difference is about 300.
🎯 Estimate the difference by rounding each number to the nearest hundred and then subtracting.
863-749 =
The difference is approximately _____.
Round each number to the nearest hundred.
863 − 749 = ?
900 − 700 = ?
Now subtract:
900 − 700 = 200
The difference is about 200.
Let’s practice!
