算一算.
|
(1)6 +8= |
(2)2 +9= |
|
(3)3 +8= |
(4)4 +8= |
算一算.
|
(1)5 +7= |
(2)9 +4= |
|
(3)5 +9= |
(4)5 +8= |
算一算.
|
(1)6 +8= |
(2)2 +9= |
|
(3)3 +8= |
(4)4 +8= |
算一算.
|
(1)5 +7= |
(2)9 +4= |
|
(3)5 +9= |
(4)5 +8= |