问题
解答题
口算下面各题. (1)
(2)
(3)
(4)1-
|
答案
(1)
+5 6
=5 6
;5 3
(2)
-4 7
=5 14
;3 14
(3)
-3 5
=3 8
;9 40
(4)1-
=17 33
.16 33
口算下面各题. (1)
(2)
(3)
(4)1-
|
(1)
+5 6
=5 6
;5 3
(2)
-4 7
=5 14
;3 14
(3)
-3 5
=3 8
;9 40
(4)1-
=17 33
.16 33