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脱式计算,能简算的要简算.(要有解答过程)153÷4...

①125×45×16 =(125×8)×(45×2)=1000×90=90000②0.4÷23+1.6÷23 =(0.4+1.6)×32=2×32=3 ③45×27+15÷321 =45×27+15×7=835+4935=5735 ④5.6×38+0.375×5.4-37.5% =5.6×0.375+0.375×5.4-0.375=0.375×(5.6+5.4-1)=0.375×10=3.75 ⑤21-(37+13)×516=21...

7.2/0.25/0.4 =7.2/(0.25x0.4) =7.2/0.1 =72 如有帮助请采纳, 如对本题有疑问可追问,Good luck!

(1)3.64÷4+4.36×25%=3.46×14+4.36×14,=(3.46+4.36)×14,=8×14,=2;(2)3.2×25×12.5,=0.8×4×25×12.5,=(4×25)×(12.5×0.8),=100×10,=1000;(3)34÷[56×(37?38)],=34÷[56×356],=34÷3,=14.

(1)0.4×5÷0.4×5,=2÷0.4×5,=5×5,=25;(2)8×25×125×40,=(8×125)×(25×40),=1000×1000,=1000000;(3)(14+1415)-1415,=14+1415-1415,=14+(1415-1415),=14+0,=14.

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.

⑴1/4÷(2/3-3/2×1/3)=3/2 ⑵24×(1/6+3/8+7/12)=27 ⑶1/8×58+1/8×41+1/8=25/2

先彩钠如何,我帮你解提这边谢谢。

(1)6.72-2.3÷0.5×0.8=6.72-4.6×0.8=6.72-3.68=3.04;(2)98-17+18-67=(98+18)-(17+67)=54-1=14;(3)910÷[12×(65-310)]=910÷[12×910]=910÷920=2;(4)(27+15)×7×5=27×7×5+15×7×5=10+7=17.

脱式计算能简算的要简算 0.25x32x12.5 =(0.25×4)×(8×12.5) =1×100 =100 2/5x68+0.4x32 =0.4×(68+32) =0.4×100 =40 14/5÷(14/5+7/10) =14/5÷7/2 =4/5 (2/3+4/15x5/6)÷10/21 =(2/3+2/9)÷10/21 =8/9÷10/21 =28/15 1-5/8÷25/28-3/10 =1-...

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