✏️ Adding Angles: Practice A (4.MD.C.7)
Paginepagineapp.comSolve addition and subtraction problems to find unknown angles. Solve each problem.
1. A right angle (90°) is split into two angles. One is 18°. The other = ___°
2. Two angles make a straight line (180°). One is 127°. The other = ___°
3. A right angle (90°) is split into two angles. One is 45°. The other = ___°
4. Two angles make a straight line (180°). One is 131°. The other = ___°
5. A right angle (90°) is split into two angles. One is 26°. The other = ___°
6. Two angles make a straight line (180°). One is 109°. The other = ___°
7. A right angle (90°) is split into two angles. One is 39°. The other = ___°
8. Two angles make a straight line (180°). One is 117°. The other = ___°
9. A right angle (90°) is split into two angles. One is 51°. The other = ___°
10. A right angle (90°) is split into two angles. One is 38°. The other = ___°
11. Two angles make a straight line (180°). One is 113°. The other = ___°
12. A right angle (90°) is split into two angles. One is 73°. The other = ___°
Answer key: 1) 72 · 2) 53 · 3) 45 · 4) 49 · 5) 64 · 6) 71 · 7) 51 · 8) 63 · 9) 39 · 10) 52 · 11) 67 · 12) 17
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Worksheets › Grade 4 Math › Adding Angles › Adding Angles
Grade 4 (ages 9–10)Numbers & mathsFree printable PDF
About this grade 4 worksheet
Free Grade 4 math worksheet (Common Core 4.MD.C.7): adding angles — twelve practice problems, with answer key. Skill: Solve addition and subtraction problems to find unknown angles. Level: Grade 4 — also suits Year 5 (UK).
For teachers: skills & standards
- CCSS 4.MD.C.7: Solve addition and subtraction problems to find unknown angles
- Works as a morning-work page, a centre/station activity, homework or an early-finisher task.
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What age is it for?
It is designed for Grade 4 (ages 9–10), but use it with any child who is ready.
What skills does it build?
Solve addition and subtraction problems to find unknown angles.
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More “Adding Angles” printables (4.md.c.7: solve addition and subtraction problems to find unknown angles)
Adding Angles: Practice B (4.MD.C.7) · Adding Angles: Mixed Practice & Reasoning (4.MD.C.7) · Adding Angles: Show Your Thinking (4.MD.C.7) · Adding Angles: Quick Check (4.MD.C.7)
All 5 adding angles sheets → · Grade 4 Math: all 10 skills → · All Common Core grades
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