用你喜欢的方法计算.
(1)3.6×0.4+35.7÷7
(2)18×0.45+18×0.55
(3)50.8÷(26.5﹣7.5×3)
(4)1.5×[0.72÷(4.2÷0.7)].
计算,能简算的要简算
10÷0.2÷2.564×4.5+3.6×451.25×3.2×0.8
14.5×10214.64+3.7×2.88.4÷0.21÷0.5.
7.05×23.7+7.05×76.3.
用简便方法计算:
1.29+3.7+0.71+6.3528×78+472×78125×89×857×101.
①12.5×3.7×0.8
②4.6×2.3+7.7×4.6
③3.6+(5.7+3.8)÷0.5
④3.6÷0.4﹣1.5×3
⑤0.1÷0.2÷0.4
⑥80.3﹣5.6×1.7.
脱式计算,能用简算的要简算.
1.3×0.75×4
1.08÷1.8×1.2
50.4×1.9﹣1.8
0.82×0.25+1.18×0.25.