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15.6+6.2.6+6.2怎么算

15.6+6.2-15.6+6.2 =(15.6-15.6)+(6.2+6.2) =0+12.4 =12.4

15.6+6.2一15.6+16.2 =15.6-15.6+6.2+16.2 =6.2+16.2 =22.4

脱式计算:(能简算的要简算) 128+306÷17×9 25×33×4×2 156+6.2-15.6+6.2 70-29.6-10.4 132×75-75×32 283×15+17×15.uiz...

15.6×98+31.2 =15.6x98+15.6x2 =15.6x(98+2) =15.6x100 =1560

不懂喔

简便计算 15.5x6.6+22x6.35 =46.5x2.2+2.2x63.5 =(46.5+63.5)×2.2 =100×2.2 =220

15.6除以(2.6+2.4) = 15.6除以5 =3.12

515.6x13.1-15.6-15.6x2.1=500x13.1+15.6x13.1-15.6x3.1=6350+15.6x10= 6350+156=6506

简便计算35点6-1点8-15点6-7点2 35点6-1点8-15点6-7点2 =(35.6-15.6)-(1.8+7.2) =20-10 =10

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