小学一年级数学（下）口算题(一)
|
19-11= |
26- 4= |
99-24= |
29- 8= |
88-77= |
|
50-50= |
24-13= |
10+20= |
14+25= |
31-11= |
|
17- 7= |
19-12= |
88-80= |
25-4= |
99-23= |
|
24-13= |
15+14= |
90-10= |
20+8= |
25+33= |