Grade 4 learners tackle decimal subtraction problems that require regrouping across decimal places. They annex zeros to whole numbers and tenths to create equal decimal places before subtracting. Borrowing one tenth as ten hundredths and one whole as ten tenths builds strong place-value understanding through CCSS 4.NF.6 practice work. Students learn to subtract decimals with regrouping and annexed zeros in clear, scaffolded examples that build accurate Grade 4 computation skills.
Style:
Decimal Addition and Subtraction
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
In Grade 4, to compute 4.0 minus 2.35 you simply subtracts 2.35 from 4 and gets 2.35 as the answer.
Rewrite: In Grade 4, to compute 4.0 minus 2.35 you rewrite 4.0 as 4.00, regroup, and get 1.65 as the answer.
2. Fix the sentence:
A Grade 4 learner thought 7.2 minus 3.45 equal 3.85 because she ignore the alignment of decimal places.
Rewrite: A Grade 4 learner found 7.2 minus 3.45 equals 3.75 because she rewrote 7.2 as 7.20 and regrouped carefully.
3. Fix the sentence:
When subtracting 5.0 from a Grade 4 problem like 5.0 minus 1.78, you gets 4.22 by skipping the zeros.
Rewrite: When subtracting in a Grade 4 problem like 5.0 minus 1.78, you get 3.22 by writing 5.00 and regrouping twice.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. Grade 4: To find 4.0 - 2.35, first rewrite 4.0 as 4.00 before subtracting.
2. Grade 4: The difference 8.0 - 3.47 equals 4.53 after annexing zeros and regrouping.
3. Grade 4: When subtracting 6.5 - 2.78, regroup by changing one tenth into ten hundredths.
4. Grade 4: 9.0 minus 5.62 equals 3.38 when you annex zeros and subtract carefully.
Part C: Short Answer
Answer each question in one or two complete sentences.
1. Grade 4: Explain why you must annex zeros when subtracting 4.0 - 2.35.
You annex zeros so 4.0 becomes 4.00, giving the minuend hundredths place to subtract from. Without zeros, you cannot regroup tenths and hundredths properly. After regrouping, 4.00 - 2.35 = 1.65.
2. Grade 4: Describe how to regroup when computing 7.0 - 3.48.
Rewrite 7.0 as 7.00. To subtract 8 hundredths from 0 hundredths, borrow one tenth as ten hundredths, then borrow one whole as ten tenths. Subtract column by column to get 3.52.
Decimal Addition and Subtraction
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
In Grade 4, to compute 4.0 minus 2.35 you simply subtracts 2.35 from 4 and gets 2.35 as the answer.
Rewrite: In Grade 4, to compute 4.0 minus 2.35 you rewrite 4.0 as 4.00, regroup, and get 1.65 as the answer.
2) Fix the sentence:
A Grade 4 learner thought 7.2 minus 3.45 equal 3.85 because she ignore the alignment of decimal places.
Rewrite: A Grade 4 learner found 7.2 minus 3.45 equals 3.75 because she rewrote 7.2 as 7.20 and regrouped carefully.
3) Fix the sentence:
When subtracting 5.0 from a Grade 4 problem like 5.0 minus 1.78, you gets 4.22 by skipping the zeros.
Rewrite: When subtracting in a Grade 4 problem like 5.0 minus 1.78, you get 3.22 by writing 5.00 and regrouping twice.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) Grade 4: To find 4.0 - 2.35, first rewrite 4.0 as 4.00 before subtracting.
2) Grade 4: The difference 8.0 - 3.47 equals 4.53 after annexing zeros and regrouping.
3) Grade 4: When subtracting 6.5 - 2.78, regroup by changing one tenth into ten hundredths.
4) Grade 4: 9.0 minus 5.62 equals 3.38 when you annex zeros and subtract carefully.
★ Part C: Short Answer
Answer each question in one or two complete sentences.
1) Grade 4: Explain why you must annex zeros when subtracting 4.0 - 2.35.
You annex zeros so 4.0 becomes 4.00, giving the minuend hundredths place to subtract from. Without zeros, you cannot regroup tenths and hundredths properly. After regrouping, 4.00 - 2.35 = 1.65.
2) Grade 4: Describe how to regroup when computing 7.0 - 3.48.
Rewrite 7.0 as 7.00. To subtract 8 hundredths from 0 hundredths, borrow one tenth as ten hundredths, then borrow one whole as ten tenths. Subtract column by column to get 3.52.
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