This Grade 2 sheet pairs rounding with matching practice for strong mental math. Students match numbers like 23, 27, 41, and 48 to their rounded forms of 20, 30, 40, and 50. Fill-in items have Grade 2 kids round first and then add or subtract the rounded numbers. It connects rounding to estimating, showing young learners how a smart guess always comes from two easy steps in a row.
Style:
Estimation (Intro)
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Round 38 to the nearest 10: 40
2. Round 71 to the nearest 10: 70
3. Estimate 28 + 41 by rounding first: 70
4. Estimate 52 + 19 by rounding first: 70
5. Estimate 63 - 21 by rounding first: 40
6. Estimate 47 + 32 by rounding first: 80
7. Estimate 88 - 39 by rounding first: 50
8. Round 54 to the nearest 10: 50
9. Round 46 to the nearest 10: 50
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
23
→ 20
20
27
→ 30
30
41
→ 40
40
48
→ 50
50
Estimation (Intro)
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) Round 38 to the nearest 10: 40
2) Round 71 to the nearest 10: 70
3) Estimate 28 + 41 by rounding first: 70
4) Estimate 52 + 19 by rounding first: 70
5) Estimate 63 - 21 by rounding first: 40
6) Estimate 47 + 32 by rounding first: 80
7) Estimate 88 - 39 by rounding first: 50
8) Round 54 to the nearest 10: 50
9) Round 46 to the nearest 10: 50
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
23
→ 20
20
27
→ 30
30
41
→ 40
40
48
→ 50
50
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10 Questions
10-15 minutes
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