问题 解答题
直接写出下面各题的得数.
298+98=0.025×400=28÷
7
9
=
0.23=
3
8
×
4
9
=
6.75-(1.9+
3
4
)=
1
8
+
2
9
)×72=
5
6
×31+31÷6=
答案

298+98=396,0.025×400=10,28÷
7
9
=36,
0.23=0.008,
3
8
×
4
9
=
1
6
6.75-(1.9+
3
4
)=4.1,
1
8
+
2
9
)×72=25,
5
6
×31+31÷6=31.

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问答题 简答题