题目内容

列竖式计算,*号题要验算.
7.01-4.98=______;
*71.7-7=______;
*8.72+2.8=______;
8.26-2.6=______.
(1)7.01-4.98=2.03;
7.01
-4.98
2.03


(2)71.7-7=64.7;
71.7
-7
64.7

验算:
64.7
+7
71.7


(3)8.72+2.8=11.52;
8.72
+2.8
11.52

验算:
2.8
+8.72
11.52


(4)8.26-2.6=5.66;
8.26
-2.6
5.66

故答案为:2.03,64.7,11.52,5.66.
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