Question

–29 + 40Add or subtract.

Answer 1

11

Explanation:

We are given the following expression which we are to solve:

`- 2 9 + 4 0`

Since there are no brackets, multiplication or division signs so we will solve this from left to right starting from the negative sign.

Adding 40 to -29 or subtracting 29 from 40 is the same so we get:

`- 2 9 + 4 0 = 1 1`