试题:
直接写出得数:
1
6
+
1
5
=
1
2
-
1
5
=
0.2+1.8=0.9-0.27=
1.9×4×0.5=
4
5
-
4
5
×
1
4
=
5
8
+
4
9
+
5
9
+
3
8
=
12.56÷3.14=

答案:

我来补答
1
6
+
1
5
=
11
30
1
2
-
1
5
=
3
10
⑤0.2+1.8=2 ⑦0.9-0.27=0.63
②1.9×4×0.5=3.8④
4
5
-
4
5
×
1
4
=
3
5
5
8
+
4
9
+
5
9
+
3
8
=2 ⑧12.56÷3.14=4
 
 
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