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脱式计算100道带答案

1. 4×102-2×49 =408-2×49 =408-98 =310 2. 25×(2+4) =25×2+25×4 =50+100 =150 3. 12×5+8 =60+8 =68 4. 99×101 =99×(100+1) =99×100+99×1 =9900+99 =9999 5. 25×(78×4) =25×4×78 =100×78 =7800 6. (25+12)×4 =25×4+12×4 =100+48 =148 7. ...

1.6÷ 3/8 – 3/8 ÷6 =1/6x(3/8-3/8) =1/6x0 =0 2.4/7 × 5/9 + 3/7 × 5/9 =(4/7+3/7)x5/9 =1x5/9 =5/9 3.5/2 -( 3/2 + 4/5 ) =5/2-3/2-4/5 =1-4/5 =1/5 4.6 ×( 1/2 + 2/3 ) =6x1/2+6x2/3 =3+4 =7 5.8 × 4/5 + 8 × 11/5 =8x(4/5+11/5) =8x3 =24...

1. 0.4×125×25×0.8 =(0.4×25)×(125×0.8)=10×100=1000 2. 1.25×(8+10)=1.25×8+1.25×10 =10+12.5=22.5 3.9123-(123+8.8)=9123-123-8.8=9000-8.8=8991.2 4.1.24×8.3+8.3×1.76 =8.3×(1.24+1.76) =8.3×3=24.9 5.9999×1001=9999×(1000+1)=...

六年级数学脱式计算带过程带答案 急急急 1.6÷ 3/8 – 3/8 ÷6 =1/6x(3/8-3/8) =1/6x0 =0 2.4/7 × 5/9 + 3/7 × 5/9 =(4/7+3/7)x5/9 =1x5/9 =5/9 3.5/2 -( 3/2 + 4/5 ) =5/2-3/2-4/5 =1-4/5 =1/5 4.6 ×( 1/2 + 2/3 ) =6x1/2+6x2/3 =3+4 =7 5.8 ×...

408-12×24 = 408 - 288 = 120 (46+28)×60 = 74 x 60 = 4440 42×50-17 = 2100- 17 = 2083 32+105÷5 = 32 + 21 = 53 420×(327-238) = 420 x 89 = 37380 (4121+2389)÷7 = 6510 ÷7 = 930 3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1 0.8×[(10...

5.4÷1.8+240×1.5=3+360=363 9000÷72×(1.25×0.7×8)=9000÷72×7=125×7=875 1.25×(8+10)=1.25×8+1.25×10=10+12.5=22.51.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 1/2-(4/5-1/2)=1/2+1/2-4/5=1-4/5=1/5 4800÷25÷4=4800÷(25x4)=4800÷100=4800÷100...

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) =9999×10...

你可以自己随意来写。 下面的脱式给你举例子: 49×102-2×49 125×76×8 125×56 302×99+302145×89+145×21 72×9867×5×2 25×(78×4)72×125 25×36 76×102 99×35 (25+12)×456×27+27×44 56×99+56125×25×8×4 25×32×125 125×64 125×47-47×25 201...

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62×7.1+2.9, =440.2+2.9, =443.1; 4.2×0.25, =(4+0.2)×0.25, =4×0.25+0.2×0.25, =1+0.05, =1.05; 5.2×4.3+0.8×4.3, =(5.2+0.8)×4.3, =6×4.3, =25.8. 8.5+1.5÷0.25×4, =8.5+6×4, =8.5+24, =32.5. 0.25×0.8+2.5% =0.2+2.5%, ...

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