题目内容

3.42+5.58=6.8-1.9=10-8.4=0.4×25=
8.4÷0.7=
2
9
×
6
7
=
73
8
÷1
=
4-2
2
5
=
1
2
-
1
4
=
7
4
=
1.2×5=3.9÷0.3=
247-99=647-19-81=4.3×5×0.2=8.7-(3.9+1.7)=
3.42+5.58=9,6.8-1.9=4.9,10-8.4=1.6,0.4×25=10,
8.4÷0.7=12,
2
9
×
6
7
=
4
21
73
8
÷1
=
73
8
4-2
2
5
=1
3
5
1
2
-
1
4
=
1
4
7
4
=0,
1.2×5=6,3.9÷0.3=13,
247-99=148,647-19-81=547,4.3×5×0.2=4.3,8.7-(3.9+1.7)=3.1.
故答案为:9,4.9,1.6,10,12,
4
21
73
8
1
3
5
1
4
,0,6,13,148,547,4.3,3.1.
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