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 46 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 7-9

Answers and reasoning. Review before teaching.

1. Calculate 123 + 77.
200
Count on or partition to add 123 and 77: 123 + 77 = 200.
2. Calculate 149 + 191.
340
Count on or partition to add 149 and 191: 149 + 191 = 340.
3. Calculate 144 + 104.
248
Count on or partition to add 144 and 104: 144 + 104 = 248.
4. Calculate 185 + 189.
374
Count on or partition to add 185 and 189: 185 + 189 = 374.
5. Calculate 167 + 125.
292
Count on or partition to add 167 and 125: 167 + 125 = 292.
6. Calculate 60 + 67.
127
Count on or partition to add 60 and 67: 60 + 67 = 127.
7. Calculate 63 + 44.
107
Count on or partition to add 63 and 44: 63 + 44 = 107.
8. Calculate 78 + 129.
207
Count on or partition to add 78 and 129: 78 + 129 = 207.
9. Calculate 52 + 60.
112
Count on or partition to add 52 and 60: 52 + 60 = 112.
10. Calculate 70 + 174.
244
Count on or partition to add 70 and 174: 70 + 174 = 244.
11. Calculate 92 + 125.
217
Count on or partition to add 92 and 125: 92 + 125 = 217.
12. Calculate 229 + 113.
342
Count on or partition to add 229 and 113: 229 + 113 = 342.

12 questions · Seed 46 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 7-9

Take your time. Show your thinking.

12 questions · Seed 46 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 7-9

Answers and reasoning. Review before teaching.

1. Calculate 123 + 77.
200
Count on or partition to add 123 and 77: 123 + 77 = 200.
2. Calculate 149 + 191.
340
Count on or partition to add 149 and 191: 149 + 191 = 340.
3. Calculate 144 + 104.
248
Count on or partition to add 144 and 104: 144 + 104 = 248.
4. Calculate 185 + 189.
374
Count on or partition to add 185 and 189: 185 + 189 = 374.
5. Calculate 167 + 125.
292
Count on or partition to add 167 and 125: 167 + 125 = 292.
6. Calculate 60 + 67.
127
Count on or partition to add 60 and 67: 60 + 67 = 127.
7. Calculate 63 + 44.
107
Count on or partition to add 63 and 44: 63 + 44 = 107.
8. Calculate 78 + 129.
207
Count on or partition to add 78 and 129: 78 + 129 = 207.
9. Calculate 52 + 60.
112
Count on or partition to add 52 and 60: 52 + 60 = 112.
10. Calculate 70 + 174.
244
Count on or partition to add 70 and 174: 70 + 174 = 244.
11. Calculate 92 + 125.
217
Count on or partition to add 92 and 125: 92 + 125 = 217.
12. Calculate 229 + 113.
342
Count on or partition to add 229 and 113: 229 + 113 = 342.

12 questions · Seed 46 · Age guidance, not curriculum certification