45 + 39 = 84, so if you want to round to the nearest ten, that's 80, or nearest hundred is 100. Otherwise, it doesn't turn out to a decimal, so it doesn't need rounding to the nearest one.
21 + 39 + 45 + 25 = 130
-39 + 6 = -33
45 + 70 ( rounding ) = 115... 67+85=
The answer is 218. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.
90
90
10 + 29 = 39 39 - 12 = 27 27 + 12 = 39 39 - 46 = -7 10 + 29 - 12 + 12 - 45 = -7
39 + 39 + 39 + 39 + 39 + 39 = 234
45-39 = 6
Depends if you are rounding up or rounding down to nearest whole number.
Yes, if you are rounding to the nearest ten. No, if you are rounding to the nearest whole number.
Perimeter of garden: 39+45+39+45 = 168 feet