求简算题答案.7.5×45+17×2.541.2×8.1+11×9.25+537×0.19(1+0.23+0.34)×(0.23×0.34+0.65)-(1+0.23+0.34+0.65)×(0.23+0.34)3.57+7.76-4.336.93+(3.9-1.83)121-68-85+53124×25(1+2/1×1+3/1×1+4/1×……×1+1/100)(1+1/2+1/3+1/4
求简算题答案.
7.5×45+17×2.5
41.2×8.1+11×9.25+537×0.19
(1+0.23+0.34)×(0.23×0.34+0.65)-(1+0.23+0.34+0.65)×(0.23+0.34)
3.57+7.76-4.33
6.93+(3.9-1.83)
121-68-85+53
124×25
(1+2/1×1+3/1×1+4/1×……×1+1/100)
(1+1/2+1/3+1/4)×(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)×(2/1+1/3+4/1)
1-1/6+1/42+1/56+1/72+1/90+1/110
要简算.
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