Math Games /
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All Addition math games
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Addition within 10
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Addition word problem within 10
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Addition missing number within 10
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Addition missing number word problem within 10
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Addition missing number with 3 numbers within 10
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Addition of 3 numbers within 20
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Addition of 3 numbers word problem within 20
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Addition metric distance word problem within 20
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Addition of 2-digit numbers within 40
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Addition with 2-digit numbers within 100
- All Addition math games
- Addition within 10
- Addition word problem within 10
- Addition missing number within 10
-
Addition missing number word problem within 10
- Addition missing number with 3 numbers within 10
- Addition of 3 numbers within 20
- Addition of 3 numbers word problem within 20
- Addition metric distance word problem within 20
- Addition of 2-digit numbers within 40
- Addition with 2-digit numbers within 100
The missing number is ?
10
2
?
When finding the missing number in an addition equation, it can be helpful to use the arrow method to grow the given number to the whole number in chunks, so the missing part of the whole number can be more easily identified
For example, if we have 50 + ? = 325
- Grow 50 by +50 (=100)
- Grow 100 by +200 (=300)
- Grow 300 by +25 (=325)
- Add the growth arrows of 50, 200, and 25 (=275)
Strategies: Finger Counting, Number Bond