问题 解答题
146+38=126-70=2.3+4.68=5.23-2.2=
9÷1.5=2.25×4=30×20%=6.4÷0.8=
1
8
-
1
9
=
2
3
+
2
9
=
8
9
×
3
4
=
5
9
÷
2
3
=
3-
2
7
-
5
7
=
1
6
+
2
3
)×3=
2
3
×
9
8
×
1
2
=
2
3
×6+6×
1
3
=
答案

146+38=184,126-70=56,2.3+4.68=6.98,5.23-2.2=3.03,
9÷1.5=6,2.25×4=9,30×20%=6,6.4÷0.8=8,
1
8
-
1
9
=
1
72
2
3
+
2
9
=
8
9
8
9
×
3
4
=
2
3
5
9
÷
2
3
=
5
6
3-
2
7
-
5
7
=2,
1
6
+
2
3
)×3=2
1
2
2
3
×
9
8
×
1
2
=
3
8
2
3
×6+6×
1
3
=6.

选择题
单项选择题