This Grade 4 sheet practices rounding to the nearest 100 by examining the tens digit. Students round numbers like 347, 567, and 250 using the 5-or-more rule, correct mistakes that confuse ones and tens, fill in rounded values, and explain why 850 rounds up to 900. The activities reinforce place-value language and prepare Grade 4 learners for estimation work. Aligned to CCSS 4.NBT.3.
Style:
Estimation and Rounding
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
Grade 4 rounding shows 347 to the nearest 100 is 400.
Rewrite: Grade 4 rounding shows 347 to the nearest 100 is 300.
2. Fix the sentence:
In Grade 4, 567 rounded to the nearest 100 is 500.
Rewrite: In Grade 4, 567 rounded to the nearest 100 is 600.
3. Fix the sentence:
Grade 4 students say 250 rounds to the nearest 100 as 200.
Rewrite: Grade 4 students say 250 rounds to the nearest 100 as 300.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. Grade 4: 482 rounded to the nearest 100 is 500.
2. Grade 4: 731 rounded to the nearest 100 equals 700.
3. In Grade 4, 950 rounded to the nearest 100 is 1000.
4. A Grade 4 student rounds 149 to the nearest 100 and gets 100.
Part C: Short Answer
Answer each question in one or two complete sentences.
1. Describe how a Grade 4 student rounds 638 to the nearest 100.
I look at the tens digit, which is 3. Because 3 is less than 5, I round down. So 638 rounds to 600.
2. In Grade 4, why does 850 round up to 900 to the nearest 100?
The tens digit is 5. Because 5 means round up, 850 becomes 900.
Estimation and Rounding
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
Grade 4 rounding shows 347 to the nearest 100 is 400.
Rewrite: Grade 4 rounding shows 347 to the nearest 100 is 300.
2) Fix the sentence:
In Grade 4, 567 rounded to the nearest 100 is 500.
Rewrite: In Grade 4, 567 rounded to the nearest 100 is 600.
3) Fix the sentence:
Grade 4 students say 250 rounds to the nearest 100 as 200.
Rewrite: Grade 4 students say 250 rounds to the nearest 100 as 300.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) Grade 4: 482 rounded to the nearest 100 is 500.
2) Grade 4: 731 rounded to the nearest 100 equals 700.
3) In Grade 4, 950 rounded to the nearest 100 is 1000.
4) A Grade 4 student rounds 149 to the nearest 100 and gets 100.
★ Part C: Short Answer
Answer each question in one or two complete sentences.
1) Describe how a Grade 4 student rounds 638 to the nearest 100.
I look at the tens digit, which is 3. Because 3 is less than 5, I round down. So 638 rounds to 600.
2) In Grade 4, why does 850 round up to 900 to the nearest 100?
The tens digit is 5. Because 5 means round up, 850 becomes 900.
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