问题 解答题
计算题:
(1)0.125×7.37+
1
8
×3.63-12.5×0.1
(2)1
4
17
×(2
2
3
-
3
4
)+
11
12
÷
17
21

(3)(4
7
8
-
13
16
+26)÷
13
16
×
1
74

(4)246×
345345345345
123123123123
答案

(1)0.125×7.37+

1
8
×3.63-12.5×0.1,

=0.125×(7.37+3.63-10),

=0.125×1,

=0.125;

(2)1

4
17
×(2
2
3
-
3
4
)+
11
12
÷
17
21

=

21
17
×
23
12
+
11
12
×
21
17

=

21
17
×(
23
12
+
11
12
),

=

21
17
×
34
12

=3.5;

(3))(4

7
8
-
13
16
+26)÷
13
16
×
1
74

=(

39
8
×
16
13
-
13
16
×
16
13
+26×
16
13
)×
1
74

=(6-1+32)×

1
74

=37×

1
74

=0.5;

(4)246×

345345345345
123123123123

=246×

1001001001×345
1001001001×123

=246×

345
123

=690.

判断题
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