72 ÷ 4 - 8 × 2 = ? 96 ÷ 8 + 3 × 7 =? 13 × ( 87 - 82 ) =? 44 ÷ (36 + 8 ) =?
72÷4-8×2=2 72÷4=18 8×2=16 18-16=2 96÷8+3×7=33 96:8=12 3×7=21 21+12=33 13×(87-82)=65 87-82=5 13×5=65 44÷(36+8)=1 36+8=44 44÷44=1