题目内容
○+○=2 ○=? △+△=4 △=?
[方法提示:想哪两个相同的数相加得2,就知道○等于几,△也是这样想.]
答案:
解析:
解析:
|
○=1,△=2 |
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先观察,再计算.
|
(1)5 ×3+5= |
5 ×4= |
|
(2)7 ×3+3= |
8 ×3= |
|
(3)4 ×6+6= |
5 ×6= |
|
(4)2 ×5-2= |
2 ×4= |
|
(5)9 ×4+9= |
( )×( )= |
|
(6)7 ×5-7= |
( )×( )= |
|
(7)3 ×7+3= |
( )×( )= |
|
(8)6 ×1+6= |
( )×( )= |