Mathematics
Grade-1
Easy
Question
Find the missing addends to make the equation true.
9 + __ = 10 + 8
- 8
- 7
- 9
- 6
The correct answer is: 9
Solve one side of the equation.
10 + 8 = 18
To get the missing addends of the other side, subtract 9 from 18;
18 – 9 = 9, So the missing number is 9.
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