72×60%-42×3/5(简算)
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72×60%-42×3/5(简算)
72×60%-42×3/5(简算)
72×60%-42×3/5(简算)
72×60%-42×3/5
=72*3/5-42*3/5
=(72-42)*35
=30*3/5
=18
72×60%-42×3/5(简算)
5/6+5/12+5/20+5/30+5/42+5/56+5/72(简算)
3/42+3/56+3/72+3/90 简算
3/42+3/56+3/72+3/90 简算
(1/2)+(5/6)+(11/12)+(19/20)+(29/30)+(41/42)+(55/56)+(71/72)+(89/90)简算
72×(5/9×3/4-5/18) 简算
5分之3*8.8+0.6*60%简算
42÷(6/5÷3/7)简算
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1-6/5+12/7-20/9+30/11-42/13+56/15-72/17+90/19简算
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