Question
Write the equation by rows for the array.
- 5 + 5 + 5 = 15
- 4 + 4 + 4 = 12
- 6 + 6 + 6 = 18
- 3 + 3 + 3 + 3 + 3 = 15
Hint:
The correct answer is: 5 + 5 + 5 = 15
There are 3 rows and each row contains 5 dots.
so the answer is
5+5+5=15
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