In this Grade 2 estimation activity students preview rounding to the nearest hundred using friendly examples. They sort numbers like 150, 270, 340, and 520 by whether they round to 100, 200, or 300 versus 400, 500, or 600, and then they answer five fill-in questions and four true-or-false items. Clear rules about tens digits 0 through 4 and 5 through 9 anchor Grade 2 learners before formal nearest-hundred lessons arrive.
Style:
Estimation (Intro)
Part A: Sort the Words
Sort each word or number into the correct category box.
150270340520210480
Rounds to 100, 200, or 300
Rounds to 400, 500, or 600
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 150 rounds up to the nearest hundred of 200.
2. 270 rounds to the nearest hundred of 300.
3. 340 rounds to the nearest hundred of 300.
4. 520 rounds to the nearest hundred of 500.
5. 480 rounds to the nearest hundred of 500.
Part C: True or False?
Read each statement. Circle True or False.
1. 210 rounds to 200 because the tens digit is 1.
True False
2. 150 rounds down to 100 because 5 rounds down.
True False
3. 340 is closer to 300 than to 400.
True False
4. 520 and 480 both round to the same hundred.
True False
Estimation (Intro)
★ Part A: Sort the Words
Sort each word or number into the correct category box.
150270340520210480
Rounds to 100, 200, or 300
Rounds to 400, 500, or 600
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) 150 rounds up to the nearest hundred of 200.
2) 270 rounds to the nearest hundred of 300.
3) 340 rounds to the nearest hundred of 300.
4) 520 rounds to the nearest hundred of 500.
5) 480 rounds to the nearest hundred of 500.
★ Part C: True or False?
Read each statement. Circle True or False.
1) 210 rounds to 200 because the tens digit is 1.
True
False
2) 150 rounds down to 100 because 5 rounds down.
True
False
3) 340 is closer to 300 than to 400.
True
False
4) 520 and 480 both round to the same hundred.
True
False
Ready to Practice?
Complete each section carefully.
10 Questions
15-20 minutes
Auto-graded
Retry anytime
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