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4.8x0.2+48x0.48简便方法?

4.8x0.2+48x0.48 =48x0.02+48x0.48 =48x(0.02+0.48) =48x0.5 =24

102×4.8一48x0.2(简便运算) 解: 102×4.8一48x0.2 =100×4.8+2×4.8-4.8×2 =100×4.8+(2×4.8-4.8×2) =480+0 =480

4.8x0.7+4.8x0.2+4.8 =4.8*0.9+4.8 =4.8*1-4.8*0.1+4.8 =4.8-0.48+4.8 =9.12

4.8*0.2=0.96

0.2+4.8×0.15 =0.2+4.8×(0.1+0.05) =0.2+0.48+0.24 =0.92

4.8x0.02+0.92x1.2 =0.096+1.104 =1.2

5x10-0.1x5-0.2x10+0.1x0.2 =50-0.5-2+0.02 =47.52

0.89(4.8+5.2)=8.9

4.8x7.8+78x0.52 =7.8×(4.8+5.2) =7.8×10 =78 6.4x0.25+36除以4 =4×0.25×1.6+9 =1.6+9 =10.6

4.8X9.9+1.2X0.4 =4.8X9.9+4.8X0.1 =4.8X(9.9+0.1) =4.8X10 =48 不懂可追问,有帮助请采纳,谢谢!

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