计算下面各题,能简算的必须简算14.8-6.46-3.54 3 5 ÷6× 10 7 ( 7 9 + 5 6 - 1 4

计算下面各题,能简算的必须简算
14.8-6.46-3.54
3
5
÷6×
10
7

7
9
+
5
6
-
1
4
)×72  
18
23
÷
8
5
+
18
23
×
3
8

1.25×6.9×8
13÷(
1
4
+
5
6
3
4
mint1986 1年前 已收到1个回答 举报

随风飘扬001 幼苗

共回答了24个问题采纳率:83.3% 举报

(1)14.8-6.46-3.54
=14.8-(6.46+3.54)
=14.8-10
=4.8;

(2)
3
5 ÷6×
10
7
=
1
10 ×
10
7
=
1
7 ;

(3)(
7
9 +
5
6 -
1
4 )×72  
=
7
9 ×72+
5
6 ×72-
1
4 ×72  
=56+60-18
=116-18
=98;

(4)
18
23 ÷
8
5 +
18
23 ×
3
8
=
18
23 ×
5
8 +
18
23 ×
3
8
=
18
23 ×(
5
8 +
3
8 )
=
18
23 ×1
=
18
23 ;

(5)1.25×6.9×8
=1.25×8×6.9
=10×6.9
=69;

(6) 13÷(
1
4 +
5
6 )×
3
4
=13÷
13
12 ×
3
4
=12×
3
4
=9.

1年前

2
可能相似的问题
Copyright © 2024 YULUCN.COM - 雨露学习互助 - 16 q. 2.384 s. - webmaster@yulucn.com