19+6.48+0.51-1.38-5.48-0.62

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19+6.48+0.51-1.38-5.48-0.62
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19+6.48+0.51-1.38-5.48-0.62
19+6.48+0.51-1.38-5.48-0.62

19+6.48+0.51-1.38-5.48-0.62
小数点后的凑整

有手机就有计算机,点呗

(2.19+0.51)+(6.48-5.48)-(1.38+0.62)=2.7+1-2=1.7

2.19 + 6.48 + 0.51 - 1.38 - 5.48 - 0.62
= (2.19 + 0.51) + (6.48 - 5.48) - (1.38 + 0.62)
= 2.7 + 1 - 2
= 1.7