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53x99x25巧算算式

53×(100-1)×25 =(5300-53)×25 =5247×25 =131175

25x99x25 =25x25x99 =625x100-625 =62500-625 =62500-600-25 =61975

1. 14x99+14 =14×(99+1) =140 2. 25x32 =25×4×8 =100×8 =800 3. 40x25x35x20 =40×25×700 =1000×700 =700000

0.25x27x4=4*0.25*27=1*27=27 45x36+64x45=45*(36+64)=45*100=4500 1.25x32x25=(1.25*8)*(4*25)=10*100=1000 0.96x25=25*4*0.24=100*0.24=24 8.8x125=8*125*1.1=1000*1.1=1100 26x99+26=26*(99+1)=26*100=2600 1.08x25=4*25*0.27=100*0....

4x0.27x25=4x25x0.27=100x0.27=27 3.8x99+3.8=3.8x(99+1)=3.8x100=380 560÷16÷5=560÷80=7 (8+4/9)÷4=2+1/9=19/9 5/2+7/3+5/3+7/4=(7/3+5/3)+(5/2+7/4)=4+17/4=33/4 13/8÷(7+7)/1x13/5=5/112

125乘以25,可写成125乘以100,再除以4. 36乘以99,可以写成36乘以100,再减去36. 45乘以101,可以写成45乘以100,在加上45. 26乘以15,再加上26乘以85, 可以写成26乘以(15+85),也就是 26乘以100.

【1】=(100-4)*25=100*25-4*25=2400 【2】=632*(100-1)=63200-632=62568 【3】=578*(172-72)=578*100=57800 【4】=278*(99+1)=278*100=27800

125x4x25x8 =(125x8)x(25x4) =1000x100 =100000 125x64 =125x8x8 =1000x8 =8000 25x(4x59) =25x4x59 =100x59 =5900 205x101-205 =205x101-205x1 =205x(101-1) =205x100 =20500 132x65+35x132 =132x(65+35) =132x100 =13200 167x2+167x3+167x5 =1...

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您好, (1)99×11+102×98 =(100-1)×11+(100+2)×(100-2) =100×11-1×11+100×100-2×2 =1100-11+10000-4 =11083 (2)25×125×36×4×8 =(25×4)×(125×8)×36 =100×1000×36 =3600000 (3)76×25+18×25×6 =19×100+27×100 =1900+2700 =4600 (4...

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