www.ctrt.net > 脱式计算,能简算的要简算. 456V×8+92 ...

脱式计算,能简算的要简算. 456V×8+92 ...

(1)456-56×8+92=456-448+92=8+92=100;(2)60450÷(50×30%)=60450÷15=4030;(3)44×(511-14)=44×511-44×14=20-11=9;(4)7×14+13÷4-19×0.25=7×14+13×14-19×0.25=(7+13-19)×0.25=1×0.25=0.25;(5)0.75+2.5-1.5+0.25 =0.75+0.25+(2.5...

(1)17.59-9.74+5.73=7.85+5.73=13.58;(2)19.92+11.55-9.92=19.92-9.92+11.55=10+11.55=21.55;(3)67.44-(15.72-23.89)=67.44-15.72+23.89=51.72+23.89=75.61;(4)40-(2.75+0.14)=40-2.89=37.11;(5)8.84+4.16-8.84+4.16=(8.84-8...

0.35×1.6+0.35×3.4 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×41846-620-380 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65) (4+0.4×0.25)8×7×1.25 1.65×99+1.65 27.85-(7....

(1)1.29+3.7+0.71+6.3,=(1.29+0.71)+(6.3+3.7),=2+10,=12;(2)528×78-428×78,=(528-428)×78,=100×78,=7800;(3)125×(92×8),=(125×8)×92,=1000×92,=92000;(4)57×101-57,=57×(101-1),=57×100,=5700;(5)(40+4...

8/69x92 =8x92/69 =8x23x4/(23x3) =8x4/3 =32/3 谢谢,请采纳

用脱式计算下面各题。 1、125+25×6 2、(135+75)÷(14×5) 3、120-60÷5×5 4、1024÷16×3 5、(135+415)÷5+16 6、1200-20×720-720÷15 7、(360-144)÷24×3 8、240+480÷30×(6+13) 9、(120×2+120)÷9 10、164-13×5+85 11、330÷(65-50) 12、...

怎么了?

300÷125÷8=300÷(125×8)=300÷1000=0.3 396-96-172-28 =(396-96)-(172+28)= 300-200 = 100 125*24 = 125*8*3 = 1000*3 = 3000 26*15 = (20+6)*15 = 20*15 + 6*15 = 300+90 =390 25*99*4 = 25*4*99 = 100*99 = 9900 250*32 = 250*4*8 = 100...

(1)6.3÷(5.25×0.8)=6.3÷4.2=1.5;(2)20÷0.8-4÷0.8=25-5=20;(3)92.5×0.25×4 =92.5×(0.25×4)=92.5×1=92.5;(4)6.7×0.9+6.7×0.1=6.7×(0.9+0.1)=6.7×1=6.7.

73×8+73×92 =73×(8+92) =73×100 =7300

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