能简算的要简算
0.4×73+0.04+2700.35×1.25×2×0.82.4×10218﹣1.8÷0.125÷0.8.
脱式计算,能简算得要简算.
5.46÷3.9+4.5×2.3
4.23×9.9+0.423
2.58﹣(3.5﹣2.4)
78÷0.25÷0.4.
(1)3.72×3.5+62.8×0.35
(2)9.9×8.6+0.86
(3)15.02﹣6.8﹣1.02﹣3.2
(4)725÷0.125÷0.25÷32
(5)8888888×77777777÷1111111÷2222222﹣9999999÷3333333.
4×2.5÷0.25×5.
20.06×65+380×2.006﹣2.006×30.