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1.
算一算
14-5= | 11-6= | 12-3= | 12-4-2= |
15-8= | 16-6= | 14-6= | 11-3+6= |
12-4= | 11-8= | 17-9= | 5+9-8= |
14-10= | 18-9= | 13-7= | 15-7-7= |
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1.
看谁算的都对。
13-4-7= | 9+4-6= |
15-8+7= | 8+7-8= |
5+6+7= | 7+6-9= |
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2.
口算训练
6+8-9= | 4+7-9= | 10-8-1= | 13-9+2= | 11-9+4= |
14-9+6= | 8+3+1= | 6+4+0= | 14-3-8= | 15-5-1= |
13-9+2= | 8+5-3= | 12+3-8= | 7+5-6= | 19-8-9= |
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3.
口算训练
14-4= | 11-7= | 15-7= | 16-8= | 12-6= |
19-6= | 13-6+8= | 7+6+ 5= | 14-6-6= | 11-8+8= |
12-5+7= | 15-6-2= | 8+9-8= | 7+8-3= | 10-6+2= |
