算一算．
|
9 ＋28= |
54 －30= |
算一算．
|
6 ＋54= |
80 －50= |
直接写得数．
|
(1)8 ＋28= |
(2)45 ＋9= |
(3)9 ＋73= |
(4)9 ＋47= |
直接写得数．
|
(1)43 ＋5= |
(2)54 ＋7= |
(3)8 ＋56= |
(4)17 ＋5= |
口算．
|
(1)6 ＋7= |
(2)5 ＋8= |
(3)7 ＋4= |
|
(4)6＋6= |
(5)9＋9= |
口算．
|
(1)7 ＋5= |
(2)6 ＋8= |
(3)7 ＋8= |
|
(4)5＋6= |
(5)4＋9= |