题目内容

(1)16×(
15
16
-
5
8
+0.125)
(2)3
3
4
×7+6.25÷
1
7

(3)1111×37+9999×7
(4)36÷(
1
2
-
1
3
+
1
12
(1)16×(
15
16
-
5
8
+0.125),
=16×
15
16
-
5
8
×16+
1
8
×16,
=15-10+2,
=7;

(2)3
3
4
×7+6.25÷
1
7

=3.75×7+6.25×7,
=(3.75+6.25)×7,
=10×7,
=70;

(3)1111×37+9999×7,
=1111×37+1111×9×7,
=1111×(37+63),
=1111×100,
=111100;

(4)36÷(
1
2
-
1
3
+
1
12
),
=36÷
1
4

=36×4,
=144.
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