8/9-3/8+1/9 7/9-2/5-5/18 5/12+3/4+2/3 1/2+(2/3-1/4) 1-1/8-3/10 5/6-(1/2-1/3)计算要有过程

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/06 07:41:18
8/9-3/8+1/9 7/9-2/5-5/18 5/12+3/4+2/3 1/2+(2/3-1/4) 1-1/8-3/10 5/6-(1/2-1/3)计算要有过程

8/9-3/8+1/9 7/9-2/5-5/18 5/12+3/4+2/3 1/2+(2/3-1/4) 1-1/8-3/10 5/6-(1/2-1/3)计算要有过程
8/9-3/8+1/9 7/9-2/5-5/18 5/12+3/4+2/3 1/2+(2/3-1/4) 1-1/8-3/10 5/6-(1/2-1/3)计算要有过程

8/9-3/8+1/9 7/9-2/5-5/18 5/12+3/4+2/3 1/2+(2/3-1/4) 1-1/8-3/10 5/6-(1/2-1/3)计算要有过程
8/9-3/8+1/9
=8/9+1/9-3/8
=1-3/8
=5/8
7/9-2/5-5/18
=7/9-5/18-2/5
=(14-5)/18-2/5
=1/2-2/5
=(5-2)/10
=3/10
5/12+3/4+2/3
=(5+3*3+2*4)/12
=22/12
=11/6
=1又6分之5
1/2+(2/3-1/4)
=1/2-1/4+2/3
=1/4+2/3
=(3+8)/12
=11/12
1-1/8-3/10
=(40-5-12)/40
=13/40
5/6-(1/2-1/3)
=5/6-1/2+1/3
=(5-3+2)/6
=4/6
=2/3

算一算,并找出规律1/9 2/9 3/9 4/9 5/9 6/9 7/9 8/9 24点 (1)1 1 9 8 (2)9 9 5 7 (3)9 9 9 7 1×1×9×9×9×9×8×7×6×5×4×3×2×120 1+1+1+1++5+5++8+5+6+3+27++8+0+6+6+2+7+8+5+9+9+9+9-9+8+5+5+51+6+5+8+5+95+8+8+9+9+8= 9宫格..4##7###1###9##5#3##7##19#8#####8#6#3##1###2##3#8#5#####3#97##6##1#6##9###9###8##1 5×6×7×8×9分之5×6×7×8×9-1×2×3×4×5 9×9数独 -2-8----9 -1--2-6-- -----52-- 7---32-4- --4-9-8-- -9--1---3 --12----- --9-5--6- 4----9-3- 1/9+1/5+3/5+4/9+2/3+7/8+1/6+5/7+3/7+5/8+3/5+1/8+2/9=? 求九宫格的解3 8 * * * 7 * * ** * 1 * 5 8 * * *9 5 * 3 * * * 1 81 2 9 * 8 * * 6 ** * 8 * * * * * ** 3 * * 9 * * 8 24 9 5 8 3 6 * * 18 * 3 5 7 * 6 * ** * * 4 * 9 8 3 5 1+1+2+3+4+5+6+7+8+9+9+9+9+9+8+7+4+5+6+3+2+1+15+655= 算24 6 2 4 7,2 4 6 8,1 1 3 4,5 1 1 3,8 4 4 6,4 4 6 9 ,6 8 8 9,5 7 7 7,4 4 5 10,9 1 8 82 2 6 9,3 3 7 10,4 5 9 9 ,7 8 8 10,4 9 9 9,7 8 8 8,3 4 9 9,3 4 10 10,7 5 6 9, 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* (1/3+2/5+3/7+4/9)/(4/3+8/5+12/7+16/9) 在1、2、3、5、6、7、8、9、9、9中,平均数是( ) - - - - - - - - - 》《- - 7 1- -2 8 -》《8 9- -5 3 - - 1》《- -4 - - - - - 9》《- 5 - 3 - 8 - 2 -》《1 - - - - - 4 - -》《5 - - 7 2 - - 4 3》《 - 3 1 - - 6 9 - -》《- - - - - - - - -》 7/9x(-8/9)+2/9x(-8/9) 2/3x(-5/8)-(-1/3)x(-5/8)7/9x(-8/9)+2/9x(-8/9) 2/3x(-5/8)-(-1/3)x(-5/8) -9除以3+(1/2-2/3)x12+3的2次方用简便方法算_ 求24点答案,要有式子7 3 7 9 2 4 9 1 9 8 7 3 5 5 7 7 1 1 6 9 9 5 1 3 4 4 4 3 9 9 5 6 3 3 1 9 10 6 4 3 8 9 5 2 6 8 2 2 3 4 7 7 2 4 6 8 9 5 5 3 5 5 2 9 3 6 9 10 1 2 2 8 3 4 5 10 3 6 6 9 7 7 6 5 1 2 8 9 9 5 2 8 7 7 9 10 3 5/9+4 7/9-1.625-2 3/8