题型:填空题 题类:常考题 难易度:普通
整十数加、减整十数1047(11题)
23+50=
33+40=
43+30=
53+20=
12-3= | 6+34= | 25+7= | 47-7= |
36-30= | 44+20= | 90-50= | 100-20= |
4+29= | 15+8= | 13-8= | 60-9= |
25-3= | 3+40= | 34-8= | 24+20= |
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