作业帮计算下面各题(能简算的要简算)(1)7.05×23.7+7.05×76.3(2)0.125×3.2×2.5(3)(12+23.1÷0.75)×0.4－5.12(4)1.6×[(12－7.2)÷(0.84÷2.1)]
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/06 08:19:43
![计算下面各题(能简算的要简算)(1)7.05×23.7+7.05×76.3(2)0.125×3.2×2.5(3)(12+23.1÷0.75)×0.4－5.12(4)1.6×[(12－7.2)÷(0.84÷2.1)]](/uploads/image/z/243797-5-7.jpg?t=%E8%AE%A1%E7%AE%97%E4%B8%8B%E9%9D%A2%E5%90%84%E9%A2%98%28%E8%83%BD%E7%AE%80%E7%AE%97%E7%9A%84%E8%A6%81%E7%AE%80%E7%AE%97%29%281%297.05%C3%9723.7%2B7.05%C3%9776.3%282%290.125%C3%973.2%C3%972.5%283%29%2812%2B23.1%C3%B70.75%29%C3%970.4%EF%BC%8D5.12%284%291.6%C3%97%5B%2812%EF%BC%8D7.2%29%C3%B7%280.84%C3%B72.1%29%5D)
计算下面各题(能简算的要简算)(1)7.05×23.7+7.05×76.3(2)0.125×3.2×2.5(3)(12+23.1÷0.75)×0.4－5.12(4)1.6×[(12－7.2)÷(0.84÷2.1)]
计算下面各题(能简算的要简算)
(1)7.05×23.7+7.05×76.3
(2)0.125×3.2×2.5
(3)(12+23.1÷0.75)×0.4－5.12
(4)1.6×[(12－7.2)÷(0.84÷2.1)]
计算下面各题(能简算的要简算)(1)7.05×23.7+7.05×76.3(2)0.125×3.2×2.5(3)(12+23.1÷0.75)×0.4－5.12(4)1.6×[(12－7.2)÷(0.84÷2.1)]
7.05×23.7+7.05×76.3
=7.05×(23.7+76.3)
=7.05×100
=705
0.125×3.2×2.5
=(0.125×8)×(0.4×2.5)
=1×1
=1
(12+23.1÷0.75)×0.4－5.12
=(12+30.8)×0.4-5.12
=17.12-5.12
=12
1.6×[(12－7.2)÷(0.84÷2.1)]
=1.6×(4.8÷0.4)
=1.6×12
=19.2