(1)3548×(3677+7255)
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(1)
×(
+
)
35 |
48 |
36 |
77 |
72 |
55 |
![(1)3548×(3677+7255)](/uploads/image/z/19853708-68-8.jpg?t=%EF%BC%881%EF%BC%893548%C3%97%283677%2B7255%29)
(1)
35
48×(
36
77+
72
55),
=
35
48×
36
77+
35
48×
72
55,
=
15
44+
21
22,
=
57
44;
(2)(
1
4+
3
8)×8,
=
1
4×8+
3
8×8,
=2+3,
=5;
(3)125
1
16×8,
=(125+
1
16)×8,
=125×8+
1
16×8,
=1000+2,
=1002;
(4)8
5
11×4
2
9-8
5
11×3
2
9,
=8
5
11×(4
2
9-3
2
9),
=8
5
11×1,
=8
5
11.
35
48×(
36
77+
72
55),
=
35
48×
36
77+
35
48×
72
55,
=
15
44+
21
22,
=
57
44;
(2)(
1
4+
3
8)×8,
=
1
4×8+
3
8×8,
=2+3,
=5;
(3)125
1
16×8,
=(125+
1
16)×8,
=125×8+
1
16×8,
=1000+2,
=1002;
(4)8
5
11×4
2
9-8
5
11×3
2
9,
=8
5
11×(4
2
9-3
2
9),
=8
5
11×1,
=8
5
11.
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