maths quick

2008-11-27 5:47 pm
1.m/45*6+2-1=10
2.m/45*6+2-1=10

回答 (3)

2008-11-27 7:12 pm
✔ 最佳答案
1.
m/45*6 2-1=10
6m/45 1 =10
6m/45=9
6m=405
m=67.5

2.
同上


以上題目 全按照"先乘除,後加減" ,這鐵則運算
參考: 己會考
2008-11-28 3:58 am
m/45*6 = 10+1-2
m/45*6 = 9
m/15*2 = 9
m/15 = 9/2
m = 4.5*15
m = 67.5
參考: me
2008-11-27 6:04 pm
1.
m/45*6+2-1=10
m/45*6+2-1+1=10+1
m/45*6+2-2=11-2
m/45*6/6=9/6
m/45*45=3/2*45
m=135/2 or 67.5

2.
m/45*6+2-1=10
m/45*6+2-1+1=10+1
m/45*6+2-2=11-2
m/45*6/6=9/6
m/45*45=3/2*45
m=135/2 or 67.5

(2 question are the same?)


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