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2.5×1.25×32脱式计算

2.5×3.2×1.25 =(2.5×0.4)×(8×1.25) =10×10 =100

①2.5×1.25×32 =2.5×1.25×(4×8)=(2.5×4)×(1.25×8)=10×10=100 ②51×2443+51×1943=51×(2443+1943)=51×1=51③318÷58-159×127=258×85-149×97=5-2=3④0.65×201-0.65=0.65×(201-1)=0.65×200=130

1.25×32×12.5%?脱式计算 1.25×32×12.5%? =1.25*8*4*0.125 =10*0.5 =5

①2.5×1.25×32,=2.5×1.25×4×8,=(2.5×4)×(1.25×8),=10×10,=100;② 5 11 × 2 7 + 6 7 × 2 11 ,= 5 11 × 2 7 + 2 7 × 6 11 ,=( 5 11 + 6 11 )× 2 7 ,=1× 2 7 ,= 2 7 ;③ 2006 2007 ×2008 ,= 2006 2007 ×(2007+1),= 2006 2007 ×20...

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脱式运算怎样做 1.25×32+2.5×12.5+0.125×430 =1.25×32+25×1.25+1.25×43 =1.25×(32+25+43) =1.25×100 =125

32×1.25脱式计算 =1.25x8x4 =10x4 =40

32x2.5x1.25脱式计算 =8x4x2.5x1.25 =(8x1.25)x(4x2.5) =10x10 =100

1.25×32×2.5 =(1.25×8)×(4×2.5) =10×10 =100 你好,本题已解答,如果满意 请点右上角“采纳答案”。

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