Question
1
visibility
Determine the number that makes the equation true.
4 + 4 = 15 –
-
A
2
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B
7
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C
3
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D
1
The correct answer is 7.
Solution:
Consider the given equation.
4 + 4 = 15 –
To determine the missing number, we need to find: 4 + 4.
Which gives:
4 + 4 = 8
So,
4 + 4 = 15 –
8 = 15 -
Next, we look for the number which when subtracted from 15 gives 8.
Note that,
15 - 7 = 8
Then,
4 + 4 = 15 – 7
So, number 7 makes the equation true.