问题 解答题
直抒胸臆:
578+216=
18.25-3.3=3.2-
1
2
=
1
9
×8.1=
1
2
+
1
3
=
2
1
4
÷3=
0.99×9+0.99=2
1
4
×
1
27
=
1
1
2
×8+1
1
2
×2=
21
7
10
÷7=
答案

578+216=794,18.25-3.3=14.95,3.2-
1
2
=2.7,
1
9
×8.1=0.9,
1
2
+
1
3
=
5
6
2
1
4
÷3=
3
4
0.99×9+0.99=9.9,2
1
4
×
1
27
=
1
12
1
1
2
×8+1
1
2
×2=15,
21
7
10
÷7=3
1
10

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