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(2007•河池)直接写出得数100-52=1.75+1.5=12+13=35−12=8×25=4.2÷0.6=78−37+18=12−12×15=12-49−59=51×98≈

题目详情
(2007•河池)直接写出得数
100-52=
1.75+1.5=
1
2
+
1
3
=
3
5
1
2
=
8×25=
4.2÷0.6=
7
8
3
7
+
1
8
=
1
2
1
2
×
1
5
=
12-
4
9
5
9
=
51×98≈
▼优质解答
答案和解析
100-52=48,
1.75+1.5=3.25,
1
2
+
1
3
=
5
6

3
5
1
2
=
1
10

8×25=200,
4.2÷0.6=7,
7
8
3
7
+
1
8
=
4
7

1
2
1
2
×
1
5
=
2
5

12-
4
9
5
9
=11,
51×98≈5000.