问题 解答题
直接写得数
0.8×0.5=
4.2÷0.07=
3
8
×
5
6
=
0.125×
1
5
×8=
1
4
×
2
3
÷
1
4
×
2
3
=
8a-5a=
4
5
-
1
3
=
7×99=
答案

0.8×0.5=0.4,4.2÷0.07=60,
3
8
×
5
6
=
5
16
0.125×
1
5
×8=
1
5
1
4
×
2
3
÷
1
4
×
2
3
=
4
9
8a-5a=3a,
4
5
-
1
3
=
7
15
7×99=693.
故答案为:0.4;60;
5
16
1
5
4
9
;3a;
7
15
;693.

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