问题 解答题
直接写出得数.
4-0.45=
1
5
+
1
4
=
5
8
×
4
5
=
999+99+2=
1
2
-
1
3
=
1÷0.875=3.6÷9=0.25×8=(
3
4
-
1
6
)×12
=
5
137
×
7
12
+
5
12
×
5
137
=
答案

4-0.45=3.55

1
5
+
1
4
=
9
20

5
8
×
4
5
=
1
2

999+99+2=1100

1
2
-
1
3
=
1
6
1÷0.875=
8
7
3.6÷9=0.40.25×8=2(
3
4
-
1
6
)×12
=7
5
137
×
7
12
+
5
12
×
5
137
=
5
137

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单项选择题