作业帮例.1.8*73+52*8 例.2.9*96+3*9+9
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/05/21 09:03:14
例.1.8*73+52*8 例.2.9*96+3*9+9
=8*（73+52） =9*（96+3+1）
=8*125 =9*100
+1000 =900
1.54*99+99*45 4.54+99*99+45
= =
= =
= =
2.100*89+89*11+89*89 5.100*89-89*11-89*89
= =
= =
= =
3.8*999*8 6.5*999+5+99*7+7+4*9+4
= =
= =
= =
=8*（73+52） =9*（96+3+1）
=8*125 =9*100
+1000 =900
1.54*99+99*45 4.54+99*99+45
= =
= =
= =
2.100*89+89*11+89*89 5.100*89-89*11-89*89
= =
= =
= =
3.8*999*8 6.5*999+5+99*7+7+4*9+4
= =
= =
= =
=99*(45+54) =89*(100+11+89) =8*(999+1)
=99*100 =89*200 =8*1000
=9900 =17800 =8000
=99*(54+45) =89*(100-11-89)
=99*100 =89*0
=9900 =0
=5*(999+1)+7*(99+1)+4*(9+1)
=5000+700+40
=5740
=99*100 =89*200 =8*1000
=9900 =17800 =8000
=99*(54+45) =89*(100-11-89)
=99*100 =89*0
=9900 =0
=5*(999+1)+7*(99+1)+4*(9+1)
=5000+700+40
=5740
例题（一）8*73+52*8=8*（73+52）=8*125=1000例题（二）9*96+3+9=9*（96=3+1）=
老师做一下例9
73-(8-9+2-5)
3,4,12,18,44,(78).0,1/6,3/8,1/2,1/2,(5/12) .44,52,59,73,83,9
不懂概率论性质3和例9怎么算出来的
解方程．（1）9x+73x+2-4x+52x+3
根据下面谜面猜成语例:脸谱全集:面面俱到2,3,4,5,6,7,8,9:( )2,3,4,5,6,8,7,9:( )1,
请问：现在有2-6-3-3-4-4-5-5-7-7-8-8-9-9-10-10怎么样排例横竖都是二十五呢
9又3分之2除以(-2.9)-(-8又3分之2)除以(-2.9)+10又3分之2除以(-2.9)
例:83×87 8×9=72 3×7=21 ∴83×87=7221 简算:496×494
二元一次方程组试题1.2x+9y=81 3x+y=34 2.9x+4y=35 8x+3y=30 3.7x+2y=52 7
不等式 (8 9:43:52)