请在下选项代替?号69++96xx69++96xx69++?6x?+1.962.9x3.6x4.+6
1个回答
把式子分成3段
69++96xx
69++96xx
69++?6x?
所以选2
相关问题
1xx87x3xxxxx69xx14x6xxxx5xx59xxxx47xxxxx3xxx587x4xxxx69x13x2
简便计算: 53x54+54x16+69x25+21x69 [98+95+100+99+100+96+96+97+99]
圆M的方程为:x-96 y6=88.8 98.69 8.8
(1)观察算式找规律:12x42=24x21 13x62=26x31 14x96=69x41 46x96=69x64 你
9XX1XX4X8XX8XX27X9XX43XX6XX89XX2XXX1X4X9618XX5X18379X6X5XX8X
观察两个算式并回答问题63x67=6x(6+1)x100+3x7=4200+21=4221692x698=69x(69+
29x54xxxx _第一题xxxxxxxxxxx39xxx6x6x9xx3x4xx4xx2xx7xx8x1xx5x2x
计算下面各组算式.32x69和23x96.13x93和31x39.96x46和69x64计算后发现什么特点?为什么?在举
九宫题谁帮忙算下67XX4X1X2 XX3XXXXX4 2XXXX1X6X XX91X6XXX 5XXX3XXX9 XX
用X代表空的.XX6XX7XX98XXX3X1XX9XX6X5X3XXX3XXXX18XXX9X1XXX21XXXX6X