计算下面各题,能用简便方法的要用简便方法计算. (1) 44 9 × 3 8 × 6 11 (2) 5× 3 4 + 3

计算下面各题,能用简便方法的要用简便方法计算.
(1)
44
9
×
3
8
×
6
11
(2)
3
4
+
3
4
÷
1
7
(3) 35×(
4
7
-
2
5
)
(4)
4
5
÷(3-
4
15
-
11
15
)
(5) (0.75-
3
16
)×(
2
9
+
1
3
)
(6)
6
7
-
6
7
÷6
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(1)
44
9 ×
3
8 ×
6
11 ,
=
44
9 ×
6
11 ×
3
8 ,
=
8
3 ×
3
8 ,
=1;

(2) 5×
3
4 +
3
4 ÷
1
7 ,
=5×
3
4 +
3
4 ×7,
=(5+7)×
3
4 ,
=12×
3
4 ,
=9;

(3) 35×(
4
7 -
2
5 ) ,
=35×
4
7 -35×
2
5 ,
=20-14,
=6;

(4)
4
5 ÷(3-
4
15 -
11
15 ) ,
=
4
5 ÷[3-(
4
15 +
11
15 )],
=
4
5 ÷[3-1],
=
4
5 ÷2,
=
2
5 ;

(5) (0.75-
3
16 )×(
2
9 +
1
3 ) ,
=
9
16 ×
5
9 ,
=
5
16 ;

(6) 6÷
6
7 -
6
7 ÷6 ,
=7-
1
7 ,
=6
6
7 .

1年前

3
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