题目内容

直接写得数:
1
3
+
1
4
=
5
8
÷5
=
1
3
+
1
2
-
1
3
+
1
2
=
1.25×8=
2-
7
10
÷
7
16
=
0.15×1.2+3.8×15%=0.25+0.75=
2
3
+
2
3
×0
=
1
2
-
4
5
)×
1
3
=
4505÷5=24.3-8.87-0.13=
1
2
÷
1
2
+2÷
1
2
=
1
3
+
1
4
=
4
12
+
3
12
=
7
12

5
8
÷5=
5
8
×
1
5
=
1
8

1
3
+
1
2
-
1
3
+
1
2
=1;
1.25×8=10;
2-
7
10
÷
7
16
=2-
7
10
×
16
7
=2-
8
5
=2-1
3
5
=
2
5

0.15×1.2+3.8×15%=0.15×(1.2+3.8)=0.15×5=0.75;
0.25+0.75=1;
2
3
+
2
3
×0=
2
3

1
2
-
4
5
)×
1
3
=(
5
10
-
8
10
)×
1
3
=-
3
10
×
1
3
=-
1
10

4505÷5=901;
24.3-8.87-0.13=24.3-(8.87+0.13)=24.3-9=15.3;
1
2
÷
1
2
+2÷
1
2
=1+4=5.
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