MathsAges 7-9

Addition fluency

Add two whole numbers with confidence and verify the total by counting on or partitioning. Review suitability for your learners before teaching.

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Worksheet StudioPractice pack · Ages 7-9

Take your time. Show your thinking.

12 questions · Seed 44 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 7-9

Answers and reasoning. Review before teaching.

1. Calculate 240 + 204.
444
Count on or partition to add 240 and 204: 240 + 204 = 444.
2. Calculate 82 + 109.
191
Count on or partition to add 82 and 109: 82 + 109 = 191.
3. Calculate 108 + 127.
235
Count on or partition to add 108 and 127: 108 + 127 = 235.
4. Calculate 230 + 174.
404
Count on or partition to add 230 and 174: 230 + 174 = 404.
5. Calculate 209 + 127.
336
Count on or partition to add 209 and 127: 209 + 127 = 336.
6. Calculate 72 + 68.
140
Count on or partition to add 72 and 68: 72 + 68 = 140.
7. Calculate 127 + 193.
320
Count on or partition to add 127 and 193: 127 + 193 = 320.
8. Calculate 229 + 102.
331
Count on or partition to add 229 and 102: 229 + 102 = 331.
9. Calculate 67 + 45.
112
Count on or partition to add 67 and 45: 67 + 45 = 112.
10. Calculate 123 + 179.
302
Count on or partition to add 123 and 179: 123 + 179 = 302.
11. Calculate 146 + 90.
236
Count on or partition to add 146 and 90: 146 + 90 = 236.
12. Calculate 228 + 200.
428
Count on or partition to add 228 and 200: 228 + 200 = 428.

12 questions · Seed 44 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 7-9

Take your time. Show your thinking.

12 questions · Seed 44 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 7-9

Answers and reasoning. Review before teaching.

1. Calculate 240 + 204.
444
Count on or partition to add 240 and 204: 240 + 204 = 444.
2. Calculate 82 + 109.
191
Count on or partition to add 82 and 109: 82 + 109 = 191.
3. Calculate 108 + 127.
235
Count on or partition to add 108 and 127: 108 + 127 = 235.
4. Calculate 230 + 174.
404
Count on or partition to add 230 and 174: 230 + 174 = 404.
5. Calculate 209 + 127.
336
Count on or partition to add 209 and 127: 209 + 127 = 336.
6. Calculate 72 + 68.
140
Count on or partition to add 72 and 68: 72 + 68 = 140.
7. Calculate 127 + 193.
320
Count on or partition to add 127 and 193: 127 + 193 = 320.
8. Calculate 229 + 102.
331
Count on or partition to add 229 and 102: 229 + 102 = 331.
9. Calculate 67 + 45.
112
Count on or partition to add 67 and 45: 67 + 45 = 112.
10. Calculate 123 + 179.
302
Count on or partition to add 123 and 179: 123 + 179 = 302.
11. Calculate 146 + 90.
236
Count on or partition to add 146 and 90: 146 + 90 = 236.
12. Calculate 228 + 200.
428
Count on or partition to add 228 and 200: 228 + 200 = 428.

12 questions · Seed 44 · Age guidance, not curriculum certification