This Grade 4 worksheet introduces rounding to the nearest 10 using the 5-or-more-rounds-up rule. Students examine the ones digit of two-digit numbers like 47 and 23 to decide whether to round up or down. Sentence-correction items expose common errors, fill-in problems build fluency, and short-answer prompts ask Grade 4 learners to explain their thinking with place-value vocabulary. 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:
When rounding 47 to the nearest 10 in Grade 4, the answer is 40.
Rewrite: When rounding 47 to the nearest 10 in Grade 4, the answer is 50.
2. Fix the sentence:
In Grade 4, rounding 23 to the nearest 10 gives 30.
Rewrite: In Grade 4, rounding 23 to the nearest 10 gives 20.
3. Fix the sentence:
Grade 4 students round 65 to the nearest 10 and get 60.
Rewrite: Grade 4 students round 65 to the nearest 10 and get 70.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. Grade 4 rounding: 38 rounded to the nearest 10 is 40.
2. In Grade 4, 72 rounded to the nearest 10 is 70.
3. Grade 4 work: 95 rounded to the nearest 10 equals 100.
4. A Grade 4 student rounds 14 to the nearest 10 and writes 10.
Part C: Short Answer
Answer each question in one or two complete sentences.
1. Explain in your own words how a Grade 4 student rounds 56 to the nearest 10.
I look at the ones digit, which is 6. Because 6 is 5 or more, I round up. So 56 rounds to 60.
2. In Grade 4, why does 42 round down to 40 when rounding to the nearest 10?
The ones digit is 2. Because 2 is less than 5, I round down, so 42 becomes 40.
Estimation and Rounding
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
When rounding 47 to the nearest 10 in Grade 4, the answer is 40.
Rewrite: When rounding 47 to the nearest 10 in Grade 4, the answer is 50.
2) Fix the sentence:
In Grade 4, rounding 23 to the nearest 10 gives 30.
Rewrite: In Grade 4, rounding 23 to the nearest 10 gives 20.
3) Fix the sentence:
Grade 4 students round 65 to the nearest 10 and get 60.
Rewrite: Grade 4 students round 65 to the nearest 10 and get 70.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) Grade 4 rounding: 38 rounded to the nearest 10 is 40.
2) In Grade 4, 72 rounded to the nearest 10 is 70.
3) Grade 4 work: 95 rounded to the nearest 10 equals 100.
4) A Grade 4 student rounds 14 to the nearest 10 and writes 10.
★ Part C: Short Answer
Answer each question in one or two complete sentences.
1) Explain in your own words how a Grade 4 student rounds 56 to the nearest 10.
I look at the ones digit, which is 6. Because 6 is 5 or more, I round up. So 56 rounds to 60.
2) In Grade 4, why does 42 round down to 40 when rounding to the nearest 10?
The ones digit is 2. Because 2 is less than 5, I round down, so 42 becomes 40.
Ready to Practice?
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9 Questions
15-20 minutes
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