题目内容

脱式计算
6-
5
3
×
1
2
-
1
6

{1-(
1
12
-
1
18
)}÷
5
8

3.6×2
8
25
÷16.9÷(3
3
5
×1.16)×1.3

1
1×2
+
1
2×3
+
1
3×4
+…+
1
99×100
(1)6-
5
3
×
1
2
-
1
6

=6-
5
6
-
1
6

=6-(
5
6
+
1
6
),
=6-1,
=5;
(2){1-(
1
12
-
1
18
)}÷
5
8

=(1-
1
36
÷
5
8

=
35
36
×
8
5

=1
5
9

(3)3.6×2
8
25
÷16.9÷(3
3
5
×1.16)×1.3,
=3.6×2
8
25
÷16.9÷4.176×1.3,
=3
3
5
×2
8
25
÷16
9
10
÷4
22
125
×1
3
10

=
2
13

(4)
1
1×2
+
1
2×3
+
1
3×4
+…+
1
99×100

=1-
1
2
+
1
2
-
1
3
+
1
3
-
1
4
+…+
1
99
-
1
100

=1-
1
100

=
99
100
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