题目内容

4505÷5=
1
3
+
1
4
=
5
8
÷5=
1
3
+
1
2
-
1
3
+
1
2
=
1.25×8=0.25+0.75=0.15×1.2+3.8×15%=
24.3-8.87-0.13=2-
7
10
÷
7
16
=
2
3
+
2
3
×0=
1
2
-
4
5
)×
1
3
=
1
2
÷
1
2
+2÷
1
2
=
4505÷5=901;
1
3
+
1
4
=
7
12
5
8
÷5=
1
8
1
3
+
1
2
-
1
3
+
1
2
=1;
1.25×8=10; 0.25+0.75=1; 0.15×1.2+3.8×15%=0.75;
24.3-8.87-0.13=15.3; 2-
7
10
÷
7
16
=0.4;
2
3
+
2
3
×0=
2
3
; (
1
2
-
4
5
)×
1
3
=-
1
10

1
2
÷
1
2
+2÷
1
2
=5.
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