问题
解答题
|
答案
39×26=1014,
39
×26 234
78 1014
25×17=425,
25
×17 175
25 425
792÷7=113…1,
113
7 792
7 9
7 22
21 1
验算:113
×7 791
+1 792
162÷3=54,
54
3 162
15 12
12 0
8.4+7.5=15.9,
8.4
+7.5 15.9
8.3-7.6=0.7,
8.3
,-7.6 0.7
验算:7.6
+0.7 8.3