看图填空.
(1)
+ + + = (厘米)
× + × = (厘米)
( + )× = (厘米)
(2)
+ + + = (厘米)
× = (厘米)
(3)
a+ + +d
a+ + +d
a+ +c+ .
看图填空.
(1)
+ + + = (厘米)
× + × = (厘米)
( + )× = (厘米)
(2)
+ + + = (厘米)
× = (厘米)
(3)
a+ + +d
a+ + +d
a+ +c+ .