带括号的混合运算（2023-07-25）

带括号的混合运算（2023-07-25）：2×(20÷4)= 56-(72-70)= 5×(20-15)= 46+(82-29)= 9×(18÷3)= 2×(80-72)= 2×(49÷7)= 96-(41+44)= 30-(16+10)= 36-(89-74)= 54-(59-22)= 37-(86-55)= 2×(80-72)= 87-(90-85)= (99-93)×7= 7×(49÷7)= 9×(24÷4)= 2×(72÷8)= 6×(18÷3)= (82-34)÷8= 98-(80-21)= 87-(90-85)= (99-93)×7= 37+(19+42)= 6×(54÷9)= ...