直接写出得数0.24÷0.06= 14÷35= 12.5×8= ×=÷= ﹣= 7.2÷0.6= 9+=
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.
64×2.5×0.1253×0.8+3×2.23.76÷0.4÷2.5 (14.21+3.5)÷74.66×0.28+4.66×0.82﹣4.662.4+57.6÷36.