700 + 80 + n = 780 + n =
700 + 80 + n = 700 + 80 + n =
700 + 80 + n = 700 + 80 + n =
0 = 0
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The answer is 0 because 700+80 is equal to 780 itself. So, 700+80+n=780+n=0.
One lot of them.
94+94+80+80=348.
80 80 + —— 160 160 80 + —— 240
80 + 8 = 88
The answer is 560. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.