Question

15×10+(30-20) × 5 =
15×10+ 30-20 × 5 =
(120 + 320 : 4) × 2 =
(120 + 320) : (4 × 2) =​

Answer 1

15×10+(30-20)×5=200

15×10+30-20×5=60

(120+320:4)×2=400

(120+320):(4×2)=55