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-27

Lvl 10

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The answer is -27. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.

15 + 1.2 = 16.2

15 + 120 = 135

27

-3

57

Q: What is 15 plus 12 plus 12 plus 12 plus 12 plus 12 plus 12 plus 12 plus 12 plus 12 plus 12?

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12 + 15 + 63 + 12 + 24 + 34 + 23 + 15 = 198

15 + 12 + 17 = 44

1+12=13+15=28+2=30+29=59.

162

12.

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12 + 15 + 63 + 12 + 24 + 34 + 23 + 15 = 198

15 +26+9+12

15 + 12 + 17 = 44

3 + 11 + 11 + 11 + 12 + 13 + 15 + 15 + 16 + 17 + 19 = 143

1+12=13+15=28+2=30+29=59.

12 + 15% = 12.1512% + 15% = 27%13.8 is 15% greater than 12.

20

-12 + 6 - 10 - 6 +15 = -7

162

It is: (15+18)+12 = 45

12.

12.