Question

5 (3-2+1)+6 (-1)5(-3)

Answer 1

5(3 - 2 + 1) + 6(-1)5(-3)

which is the same as:

5 × (3 - 2 + 1) + 6 × -1 × 5 × -3

Do the subtraction and addition in the bracket first.

5 × 2 + 6 × -1 × 5 × -3

Then do the multiplications.

10 + 90

Add the numbers and you will get 100.