问题 解答题
直接写出得数
1004-298=6.4-3.17=
3
4
×
8
9
=
2
3
+
1
4
=
4.2×0.5=
4
9
=
9.3÷0.03=2-
5
7
=
答案

1004-298=706,6.4-3.17=3.23,
3
4
×
8
9
=
2
3
2
3
+
1
4
=
11
12
4.2×0.5=2.1,
4
9
=
9
4
9.3÷0.03=310,2-
5
7
=1
2
7

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