[5/6+7/12/(-3/2)-(-2/3)的2次方】/(-5/36)
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[5/6+7/12/(-3/2)-(-2/3)的2次方】/(-5/36)
[5/6+7/12/(-3/2)-(-2/3)的2次方】/(-5/36)
[5/6+7/12/(-3/2)-(-2/3)的2次方】/(-5/36)
[5/6+7/12/(-3/2)-(-2/3)的2次方】/(-5/36)
=[5/6+(7/12)×(-2/3)- 4/9] ×(-36/5)
=(5/6)×(-36/5) + (-7/18)×(-36/5) - (4/9)×(-36/5)
=-6 + 14/5 + 16/5
=-6 + 30/5
=-6+6
=0
或者:
[5/6+7/12/(-3/2)-(-2/3)的2次方】/(-5/36)
=[5/6+(7/12)×(-2/3)- 4/9] /(-5/36)
=[5/6- (7/18) - 4/9] /(-5/36)
=(15/18 - 7/18 - 8/15)/(-5/36)
=0/(-5/36)
=0
2,3,6,3,5,12,5,7,24,7,( ),( )
6/7x(2/3-1/2)/5/12
(1/2-3-5/9+5/6-7/12)*(-36)
(2/3-5/6-7/8+1/12)*(-24)=?
1+2+3+4+5+6+7+8+9+12
1/2,3/6,5/12,7/20,( ),( ).找规律
2 3 4 5 6 7 8 9 12 快,
{3,6,9,12}∪{2,5,7}
[5/6+7/12/(-3/2)-(-2/3)的2次方】/(-5/36)
急*2**7******12**7*5*5***3*9***9*4**8*3**5*6**1*7**8*2***8*7***6*9*6**41******3**5*
1*2*3+2*3*4+3*4*5+5*6*7+.10*11*12
1*2*3+2*3*4+3*4*5+5*6*7+.10*11*12
6/7×5/9+4/9×6/7(简便计算) 0.8-(2/3+1/12)×8/9 5/6÷(6-5/12-7/12
2 5 8 12 7 6 7 2 8 12 5 8 12 7 6 7 28 1 1 13 3 13 1660 30 80找规律,
3/2+7/3+7/4 9又5/4-2又7/2-1又7/5 10/4+12/5+10/6 12/5+6/1+12/7+6/5 等于多少?用简便的计算
24乘5/6,3/5除以7/8,5/12乘4/25,7/12除以7/9,一除以11/12,2/3乘以6/5
2/3+5/12-1/6 35除以(6/5x除以3/7)
1+2-3+5-6+7+8+2×6+12-18=?