问题 解答题
直接写出得数.
159+299=
0.43-0.3=
4
5
=
5
6
×
9
10
=
1.2×1.5=1-
1
7
-
6
7
=
答案

159+299=458;0.43-0.3=0.13;
4
5
=10;
5
6
×
9
10
=0.75;
1.2×1.5=1.8;1-
1
7
-
6
7
=0.
故答案依次为:458,0.13,10,0.75,1.8,0.

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