75乘98加150用简便方法
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22乘100减22乘2加44等于22乘100(手机打字,
23乘99加23=23×(99+1)=23×100=2300
(4.5+5.5)*6.32=10*6.32=63.2
24乘98加48=24×98+24×2=24×(98+2)=24×100=2400
48×(100-1)+48=48×100=4800
49乘100再减去49就好了
99×26+99=99×(26+1)=99×27=(100-1)×27=100×27-1×27=2700-27=2673
76*25+8*75=76*25+8*3*25=76*25+24*25=(76+24)*25=100*25=2500再问:我知道了,你的意思是:76×25+8×75=76×25+8×3×25=76×2
99*38+38=(99+1)*38=100*38=3800
99*13+13=13*(99+1)=13*100=1300
99*36+36=(99+1)*36=100*36=3600
=2.37*82+2.37+13+2.37*5=2.37*(82+13+5)=2.37*100=237
0.79×0.64+7.9×0.24+11.4×0.079=0.79×0.64+0.79×2.4+1.14×0.79=0.79×(0.64+2.4+1.14)=0.79×4.18=3.3022
37*65+25*65+16*38=65*62+16*38=65*62+(16+65-65)*38=65*(38+62)-51*38=65*100-(50+1)*2*19=65*100-100*19-
42×98+84=42×(100-2)+84=42×100-42×2+84=4200-84+84=4200
32x1.25+12.5x6.8=32x1.25+68x1.25=(32+68)x1.25=100x1.25=125
0.79X0.46+7.9X0.24+11.4X0.079=0.79X0.46+0.79X2.4+1.14X0.79=0.79X(0.46+2.4+1.14)=0.79X4=3.16翁锦文为你解答,如
36*56+36*2*22=36*(56+22+22)=36*100=3600
(43+26+31)*125=100*125=12500
=23×2×28+23×4×32+23×16=23×56+23×128+23×16=23×(56+128+16)=23×200=4600