How do you simplify #2+ 8\times 10- ( - 7)#?

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Answer 1 · 2017-03-23T04:06:01

Using BEDMAS. The answer is #89#.

According to BEDMAS (Brackets, Exponents, Division, Multiplication, Addition, Subtraction), operations need to be done in that order.

#2+8xx10-(-7)#

There is a bracket, but it doesn't change anything, and there are no exponents or division in this expression, so we ignore these and move on.

Since multiplication is next in BEDMAS, we do it before any other operations. #8*10=80#, so the expression now looks like this:
#2+80-(-7)#

Since subtraction and addition have equal priority, we move from left to right. #2+80=82#, making the expression #82-(-7)#.

Two negatives multiply to make a positive and the numbers are therefore added to each other, making the expression equal to: #82+7#.

#82+7=89#, which is your final answer.