CD爱灌水
春芽
共回答了11个问题采纳率:100% 举报
11.1-3.26-2.64-4.1=11.1-(3.26+2.64)-4.1=11.1-5.9-4.1=11.1-(5.9+4.1)=1.1
7.12-3.7+4.88-2.3=7.12+4.88-(3.7+2.3)=12-6=6
0.18/8.1=18/810=1/45
10.1*8.6=(10+0.1)*8.6=86.86
6.3/(0.7*5)= (6.3/0.7)*(1/5)=9/5=1.8
4.6*2.3+0.54*23=4.6*2.3+0.54*10*23/10=4.6*2.3+5.4*2.3=(4.6+5.4)*2.3=23
1年前
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