Question

A] (36-54 :9) .12

B] ( 64:8-2.3) .10

C] 46+[5+(42:6-4)]

Answer 1

a.

$(36 - 54 \div 9) \times 12 \\ (36 - 6) \times 12 \\ 30 \times 12 = 360$

b.

$(64 \div 8 - 2 \times 3) \times 10 \\ (8 - 6) \times 10 \\ 2 \times 10 = 20$

c.

$46 + (5 + (42 \div 6 - 4)) \\ 46 + (5 + (7 - 4)) \\ 46 + (5 + 3) \\ 46 + 8 = 54$