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小数脱式计算简便方法

408-12*24 = 408 - 288 = 120 (46+28)*60 = 74 x 60 = 444042*50-17 = 2100- 17 = 208332+105÷5 = 32 + 21 = 53420*(327-238) = 420 x 89 = 37380(4121+2389)÷7 = 6510 ÷7 = 9303.416÷(0.016*35) = 3.416 ÷0.56 = 6.10.8*[(10-6.76)÷1.2] = 0.8 x(3.

0.4*125*25*0.8 =(0.4*25)*(125*0.8)=10*100=1000 1.25*(8+10) =1.25*8+1.25*10=10+12.5=22.5 9123-(123+8.8) =9123-123-8.8=9000-8.8=8991.2 1.24*8.3+8.3*1.76 =8.3*(1.24+1.76)=8.3*3=24.9 9999*1001 =9999*(1000+1)=9999*1000+

下面各题怎样算简便就怎样算.6.9+4.8+3.1 0.456+6.22+3.78 15.89+(6.75-5.89)4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48)3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8

0.5*16—16*0.2=4x 9.25-X=0.403 16.9÷X=0.3 X÷0.5=2.6 3-5x=80 1.8-6x=54 6.7x-60.3=6.7 9 +4x=40 0.2x-0.4+0.5=3.7 9.4x-0.4x=16.2 12-4x=20 1/3x+5/6x=1.4 12x+34x=1 18x-14x=12 23 x-5*14=14 12+34x=56 22-14x=12 (0.5+x)+x=9.8÷2 2(X+X+0.5)=9.8 25000+x=6x 3200=450+5X+X X-0.8X=6 12x-8x=4.8

脱式计算.408-12*24 (46+28)*60 42*50-1715÷532+105÷5 (108+47)*52 420*(327-238)(4121+2389)÷7 671*15-974 469*12+1492405*(3213-3189) 5000-56*23 125*(97-81)6942+480÷3 304*32-154 20+80÷4-20=100÷(32-30)*0= 25*4-12*5=70

绞尽脑汁啊!脱式计算 1.36*(913-276÷23) 2.(93+25*21)*93.507÷13*63+498 4.723-(521+504)÷255.384÷12+23*371 6.(39-21)*(396÷6)7、156*[(17.7-7.2)÷3] 8、[37.85-(7.85+6.4)] *30 9、28*(5+969.9÷318) 10、81÷[(72-54)*9]11、57*12-560÷

5.3*6.3+2.3= 4.4*7.3+5.3= 4*8.8+1.5= 4.1*0.8-0.2= 9.9*1.4+0.6= 6.4*2.4+3.6= 12.48-4*9.7= 9.8*1.3-0.3= 4.8*9.1-0.5= 2.9+0.6*7.5= 4.2*1.8-0.1= 8.6*6.5+6.4= 5.59-3*4.3= 0.2*5.6+2.5= 3.053-0.1*5.3= 9.4*8.4+5.8= 0.5*4.6+7.1= 6.908-1.3

1. 3/7 * 49/9 - 4/3 2. 8/9 * 15/36 + 1/27 3. 12* 5/6 2/9 *3 4. 8* 5/4 + 1/4 5. 6÷ 3/8 3/8 ÷6 6. 4/7 * 5/9 + 3/7 * 5/9 7. 5/2 -( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9 * 5/6 + 5/6 10. 3/4 * 8/9 - 1/3 11. 7 * 5/49 + 3/14 12. 6 *( 1/2 + 2/3 ) 13. 8 * 4/5 + 8 * 11/5

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