76
Adding 79 to 321 gives 400 as the result(79+321).
79 + (3%) = 81.37
Sum = 79*(79+1)/2 = 79*80/2 = 3160
79 + 3 - 87 = -5
79
1,042
The answer is 169.78. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.
79
79 + 79 = 158
a + 79
79 + 79 = 158
79