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All Subtraction math games
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Subtraction with 3 digit numbers within 1,000
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Subtraction number names within 100
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Subtraction word problem in metric distance
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Subtraction word problem in imperial distance
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Subtraction word problem in metric weight
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Subtraction word problem in imperial weight
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Subtraction word problem in metric volume
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Subtraction word problem in imperial volume
- All Subtraction math games
- Subtraction with 3 digit numbers within 1,000
- Subtraction number names within 100
-
Subtraction word problem in metric distance
- Subtraction word problem in imperial distance
- Subtraction word problem in metric weight
- Subtraction word problem in imperial weight
- Subtraction word problem in metric volume
- Subtraction word problem in imperial volume
646 less 370 is ?
-300 | -70 | |||
| 646 | 346 | ? |
When subtracting numbers, it can be helpful to decompose the second number using the place value method and then use the arrow method to decrease the first number by each place value
For example, if we have 875 - 239
- Decompose 239 into 2 hundreds, 3 tens, and 9 ones
- Decrease 875 by -200 (=675)
- Decrease 675 by -30 (=645)
- Decrease 645 by -9 (=636)
Strategies: Arrow Method