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 45 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 7-9

Answers and reasoning. Review before teaching.

1. Calculate 216 + 48.
264
Count on or partition to add 216 and 48: 216 + 48 = 264.
2. Calculate 74 + 104.
178
Count on or partition to add 74 and 104: 74 + 104 = 178.
3. Calculate 149 + 45.
194
Count on or partition to add 149 and 45: 149 + 45 = 194.
4. Calculate 125 + 146.
271
Count on or partition to add 125 and 146: 125 + 146 = 271.
5. Calculate 195 + 225.
420
Count on or partition to add 195 and 225: 195 + 225 = 420.
6. Calculate 100 + 63.
163
Count on or partition to add 100 and 63: 100 + 63 = 163.
7. Calculate 216 + 99.
315
Count on or partition to add 216 and 99: 216 + 99 = 315.
8. Calculate 147 + 110.
257
Count on or partition to add 147 and 110: 147 + 110 = 257.
9. Calculate 197 + 193.
390
Count on or partition to add 197 and 193: 197 + 193 = 390.
10. Calculate 190 + 59.
249
Count on or partition to add 190 and 59: 190 + 59 = 249.
11. Calculate 219 + 195.
414
Count on or partition to add 219 and 195: 219 + 195 = 414.
12. Calculate 98 + 156.
254
Count on or partition to add 98 and 156: 98 + 156 = 254.

12 questions · Seed 45 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 7-9

Take your time. Show your thinking.

12 questions · Seed 45 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 7-9

Answers and reasoning. Review before teaching.

1. Calculate 216 + 48.
264
Count on or partition to add 216 and 48: 216 + 48 = 264.
2. Calculate 74 + 104.
178
Count on or partition to add 74 and 104: 74 + 104 = 178.
3. Calculate 149 + 45.
194
Count on or partition to add 149 and 45: 149 + 45 = 194.
4. Calculate 125 + 146.
271
Count on or partition to add 125 and 146: 125 + 146 = 271.
5. Calculate 195 + 225.
420
Count on or partition to add 195 and 225: 195 + 225 = 420.
6. Calculate 100 + 63.
163
Count on or partition to add 100 and 63: 100 + 63 = 163.
7. Calculate 216 + 99.
315
Count on or partition to add 216 and 99: 216 + 99 = 315.
8. Calculate 147 + 110.
257
Count on or partition to add 147 and 110: 147 + 110 = 257.
9. Calculate 197 + 193.
390
Count on or partition to add 197 and 193: 197 + 193 = 390.
10. Calculate 190 + 59.
249
Count on or partition to add 190 and 59: 190 + 59 = 249.
11. Calculate 219 + 195.
414
Count on or partition to add 219 and 195: 219 + 195 = 414.
12. Calculate 98 + 156.
254
Count on or partition to add 98 and 156: 98 + 156 = 254.

12 questions · Seed 45 · Age guidance, not curriculum certification