Question

Can someone help me with this plzz

Answer 1

3(15-6)

=45-18

=27

5×3×2+7×7

=30+49

=79

172-4×8×5

=172-160

=12

80/5×4

=80/20

=4

36- (24/4)

=36-6

=30

2×5²

=2×25

=50

60-5×3²+6²

=60-5×9+36

=60-45+36

=15+36

=51