简算999.3-998.2+997.3-996.2+...3.3-2.2+1.3-0.2
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简算999.3-998.2+997.3-996.2+...3.3-2.2+1.3-0.2
![简算999.3-998.2+997.3-996.2+...3.3-2.2+1.3-0.2](/uploads/image/z/8257113-9-3.jpg?t=%E7%AE%80%E7%AE%97999.3-998.2%2B997.3-996.2%2B...3.3-2.2%2B1.3-0.2)
=(999.3-998.2)+(997.3-996.2)+……+(3.3-2.2)+(1.3-0.2)
=1.1+1.1+……+1.1+1.1
=1.1*50
=55
再问: 呃,你做错了,但还是谢谢你O(∩_∩)O
再答: 是乘以500
=1.1+1.1+……+1.1+1.1
=1.1*50
=55
再问: 呃,你做错了,但还是谢谢你O(∩_∩)O
再答: 是乘以500
简算999.3-998.2+997.3-996.2+...3.3-2.2+1.3-0.2
999.3-998.2+997.3-996.2+.+3.3-2.2+1.3-0.2
999.3-998.2+997.3-996.2+...3.3-2.2+1.3-0.2
999.3-998.2+997.3-996.2+.+3.3-2.2+1.3-0.2,等于多少?
999.3-998.2+997.3-996.2+...+3.3-2.2+1.3-0.2
1.3*1/4-0.5*25%-0.2/4简算
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