# Lesson Worksheet: Estimating Differences between Two-Digit Numbers: Rounding Mathematics

In this worksheet, we will practice estimating the difference between two-digit numbers by rounding to the nearest ten.

Q1:

Scarlett wants to estimate .

She decides to round the numbers to the nearest ten.

Pick the calculation she should do to estimate.

• A
• B
• C
• D

Estimate .

Q2:

Look at how Noah estimated the difference by rounding to the nearest ten.  Estimate the difference by rounding to the nearest ten. Estimate the difference by rounding to the nearest ten. Q3:

The teacher asked Jackson and Benjamin to find the estimated result of by rounding numbers to the nearest ten. Jackson said, “The estimated result is 30,” but Benjamin said, “The estimated result is 40.” Who is correct?

• ABenjamin
• BJackson

Q4:

A student wants to estimate the result of by rounding the numbers to the nearest ten. Which number line represents the correct way to round these numbers?

• A • B • C • D Use this rounding to estimate the result of .

Q5:

Mia wants to estimate the difference between 56 and 41. She says: “If we round both numbers to the nearest 10, the estimated difference is 20”. Is Mia’s statement true or false?

• ATrue
• BFalse

Q6:

Estimate using rounding to the nearest ten. Q7:

Estimate the result of by rounding to the nearest ten.

Q8:

Jacob has \$62, and he buys goods for \$37. Using rounding, estimate how much he will have after buying goods.

Q9: Who is correct?

• AChloe
• BEthan

Q10:

Natalie estimates by rounding both numbers to the nearest 10. Does she get an estimate that is greater or smaller than the exact answer? • ASmaller
• BGreater

This lesson includes 63 additional question variations for subscribers.