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Grade-1
Complete the Subtraction Sentence - Numbers up to 20
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Fill in the missing number :
17 - ? = 15
Explanation
17 - ? = 15
Subtract 15 from both sides and take the unknown value to the other side to make it positive.
(17 - 15) - ? = 15 - 15
(17 - 15) = ? + 0
2 = ?
The missing number is 2.
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