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0.5×2.33x8的简便方法标种答案

0.5×2.33x8 =0.5×8×2.33 =4×2.33 =9.32

0.5*2.33*8=(0.5*8)*2.33=4*2.33=9.32

0.25×2.33×8 =0.25×8×2.33 =2×2.33 =4.66

0.5*2.33*8 =0.5*8*(2+0.3+0.03) =4(2+0.3+0.03) =8+1.2+0.12 =9.32

0点5X2点33x8=0点5x8X2点33=4X2点33=9.32

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