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1.
直接写出得数。
16-8= | 15-9= | 14-5= | 11-2+6= | 12-4+20= |
3+30= | 45-40= | 90+6= | 72-70+9= | 13-4+30= |
12-6= | 13-7= | 11-4= | 10-3+20= | 6-4+50= |
14-6= | 55-5= | 12-3= | 94-90+8= | 16-7+6= |
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1.
直接写出得数。
13-4= | 50+8= | 2+90= | 14-6= | 13-5+9= |
88-80= | 40+3= | 64-4= | 7+50= | 19-10-7= |
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2.
口算。
8+50= | 14-6= | 17-8= | 13-4-3= |
56-50= | 47-7= | 15-9= | 3+4+9= |
78-8= | 13-8= | 11-2= | 6+7-5= |
20+9= | 14-8= | 15-7= | 12-6+4= |
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3.
“细心审题”我能算
12-10= | 12+6= | 16-6-3= | 15-9= |
12-6= | 11-9= | 5+10-6= | 11-3+3= |
30+6= | 37-7= | 5+30-5= | 13-3-3= |
