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脱式计算,能简算的要简算.(要有解答过程)153÷4...

(1)153÷45+6.6=3.4+6.6,、=10;(2)(14+18+112)×24=14×24+18×24+112×24,=6+3+2,=11;(3)3.6×[2÷(45?0.6)].=3.6×[2÷(0.8-0.6)],=3.6×[2÷0.2],=3.6×10,=36.

(1)0.25×[(2.8+4.4)÷1.2],=0.25×[7.2÷1.2],=0.25×6,=1.5;(2)3.7×9.16+6.3×9.16,=(3.7+6.3)×9.16,=10×9.16,=91.6;(3)[32-(1.95-1.95)]÷1.6,=[32-0]÷1.6,=32÷1.6,=20;(4)5.7×10.1,=5.7×(10+0.1),=5.7×10+5.7×0.1,...

①14.37-5.63-4.37,=14.37-(5.63+4.37),=14.37-10,=4.37;②5÷13+27×113+713,=513+2713+713,=3;③117×49+517×19,=117×49+117×59,=117×(49+59),=117;④56×[(34-12)÷35],=56×[14×53],=56×512,=2572.

(1)3.58-2.36-(2.64-1.42)=3.58-2.36-2.64+1.42=(3.58+1.42)-(2.36+2.64)=5-5=0;(2)(14+16?13)×12=14×12+16×12-13×12=3+2-4=1;(3)3.6×118+8.4÷811=3.6×118+8.4×118=(3.6+8.4)×118=12×118=332;(4)34÷[3.75×(1.2?15)]=34÷[3.75×1...

(1)4.85×1.25×8 =4.85×(1.25×8)=4.85×10=48.5(2)6.8÷[(4.5-2.8)×0.4]=6.8÷[1.7×0.4]=6.8÷0.68=10(3)39÷0.125÷0.8=39÷(0.125×0.8)=39÷0.1=390 (4)4.8×0.65+0.65×5.2=0.65×(4.8+5.2)=0.65×10=6.5

(1)1.6×55.4-55.4×0.6-55.4,=(1.6-0.6-1)×55.4,=0×55.4,=0;(2)17.68÷5.2+2.7×1.5,=3.4+4.05,=7.45;(3)4.8×0.25,=(1.2×4)×0.25,=1.2×(4×0.25),=1.2×1,=1.2.

(1)79×978,=(78+1)×978,=78×978+1×978,=9+978,=9978;(2)58÷2021÷712,=58×2120×127,=118;(3)4×[( 56+23)÷6],=4×[96×16],=4×14,=1;(4)14÷1295+295×86.=14×295+295×86,=(14+86)×295,=100×295,=29500.

(1)13÷0.4÷2.5,=13÷(0.4×2.5),=13÷1,=13;(2)64×4.5+36×4.5,=(64+36)×4.5,=100×4.5,=450;(3)1.25×2.5×0.8,=1.25×0.8×2.5,=1×2.5,=2.5;(4)1.5×101-1.5,=1.5×(101-1),=1.5×100,=150;(5)14.64+3.7×2.8,=14.64+10....

(1)817+278÷4,=817+69.5,=886.5;(2)45×9.8,=45×(10-0.2),=45×10-45×0.2,=450-9,=441;(3)5.4×2.8-7.63,=15.12-7.63,=7.49;(4)4.5+(2-0.75)×6,=4.5+(2×6-0.75×6),=4.5+(12-4.5),=4.5-4.5+6,=0+6,=6;(5)1.25×2....

(1)13.4+5.62+17.6+4.38,=(13.4+17.6)+(5.62+4.38),=31+10,=41.(2)3.4÷[(1.2+0.5)×5],=3.4÷[1.7×5],=3.4÷8.5,=0.4.(3)0.75×18÷0.15,=13.5÷0.15,=90.(4)2.5×3.2×1.25,=(2.5×0.4)×(8×1.25),=1×10,=10.

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