(1/3+1/4-1/6)乘24= 2.25乘(-2.3)乘3/25= (-2.1)乘6.5乘(-3/7)=
2个回答

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(1)原式=1/3*24+1/4*24-1/6*24=8+6-4=10

(2)原式=-9/4*33/10*3/25=-891/1000=-0.891

(3)原式=21/10*13/2*3/7=117/20=5.85

(4)原式=-378/63=-6

(5)原式=3/4*4/5*10/3=2

(6)原式=-16/5*5/96=-1/6

(7)原式=-9/14*2/5=-18/70

(8)原式=21/2*11/10*3/7*2=99/10=9.9

(9)原式=-1/3*42+5/21*42-3/14*42+2/7*42=-14+10-9+12=-1

(10)原式=1/12*5/12*6*1/4=5/96

乌,累死我了,给加分吧.