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 104729 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 7-9

Answers and reasoning. Review before teaching.

1. Calculate 129 + 76.
205
Count on or partition to add 129 and 76: 129 + 76 = 205.
2. Calculate 215 + 226.
441
Count on or partition to add 215 and 226: 215 + 226 = 441.
3. Calculate 240 + 97.
337
Count on or partition to add 240 and 97: 240 + 97 = 337.
4. Calculate 164 + 178.
342
Count on or partition to add 164 and 178: 164 + 178 = 342.
5. Calculate 171 + 115.
286
Count on or partition to add 171 and 115: 171 + 115 = 286.
6. Calculate 157 + 202.
359
Count on or partition to add 157 and 202: 157 + 202 = 359.
7. Calculate 122 + 157.
279
Count on or partition to add 122 and 157: 122 + 157 = 279.
8. Calculate 79 + 75.
154
Count on or partition to add 79 and 75: 79 + 75 = 154.
9. Calculate 210 + 151.
361
Count on or partition to add 210 and 151: 210 + 151 = 361.
10. Calculate 186 + 94.
280
Count on or partition to add 186 and 94: 186 + 94 = 280.
11. Calculate 178 + 115.
293
Count on or partition to add 178 and 115: 178 + 115 = 293.
12. Calculate 164 + 71.
235
Count on or partition to add 164 and 71: 164 + 71 = 235.

12 questions · Seed 104729 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 7-9

Take your time. Show your thinking.

12 questions · Seed 104729 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 7-9

Answers and reasoning. Review before teaching.

1. Calculate 129 + 76.
205
Count on or partition to add 129 and 76: 129 + 76 = 205.
2. Calculate 215 + 226.
441
Count on or partition to add 215 and 226: 215 + 226 = 441.
3. Calculate 240 + 97.
337
Count on or partition to add 240 and 97: 240 + 97 = 337.
4. Calculate 164 + 178.
342
Count on or partition to add 164 and 178: 164 + 178 = 342.
5. Calculate 171 + 115.
286
Count on or partition to add 171 and 115: 171 + 115 = 286.
6. Calculate 157 + 202.
359
Count on or partition to add 157 and 202: 157 + 202 = 359.
7. Calculate 122 + 157.
279
Count on or partition to add 122 and 157: 122 + 157 = 279.
8. Calculate 79 + 75.
154
Count on or partition to add 79 and 75: 79 + 75 = 154.
9. Calculate 210 + 151.
361
Count on or partition to add 210 and 151: 210 + 151 = 361.
10. Calculate 186 + 94.
280
Count on or partition to add 186 and 94: 186 + 94 = 280.
11. Calculate 178 + 115.
293
Count on or partition to add 178 and 115: 178 + 115 = 293.
12. Calculate 164 + 71.
235
Count on or partition to add 164 and 71: 164 + 71 = 235.

12 questions · Seed 104729 · Age guidance, not curriculum certification