用简便的方法计算.5.48+8.73+4.52+1.27 0.4×1.25×25×8 17.5-4.25-5.75 276×27÷27.6 9.25×
用简便的方法计算.5.48+8.73+4.52+1.270.4×1.25×25×817.5-4.25-5.75276×27÷27.69.25×9.9+92.5%43×27...
用简便的方法计算.5.48+8.73+4.52+1.27 0.4×1.25×25×8 17.5-4.25-5.75 276×27÷27.6 9.25×9.9+92.5% 43×27+57÷75%
展开
1个回答
展开全部
(1)5.48+8.73+4.52+1.27,
=(5.48+4.52)+(8.73+1.27),
=10+10,
=20;
(2)0.4×1.25×25×8,
=(0.4×25)×(1.25×8),
=10×10,
=100;
(3)17.5-4.25-5.75,
=17.5-(4.25+5.75),
=17.5-10,
=7.5;
(4)276×
÷27.6,
=276÷27.6×
,
=10×
,
=
;
(5)9.25×9.9+92.5%,
=0.925×99+0.925,
=0.925×(99+1),
=0.925×100,
=92.5;
(6)
×
+
÷75%,
=
×
+
×
,
=
×(
+
),
=
.
=(5.48+4.52)+(8.73+1.27),
=10+10,
=20;
(2)0.4×1.25×25×8,
=(0.4×25)×(1.25×8),
=10×10,
=100;
(3)17.5-4.25-5.75,
=17.5-(4.25+5.75),
=17.5-10,
=7.5;
(4)276×
2 |
7 |
=276÷27.6×
2 |
7 |
=10×
2 |
7 |
=
20 |
7 |
(5)9.25×9.9+92.5%,
=0.925×99+0.925,
=0.925×(99+1),
=0.925×100,
=92.5;
(6)
4 |
3 |
2 |
7 |
5 |
7 |
=
4 |
3 |
2 |
7 |
5 |
7 |
4 |
3 |
=
4 |
3 |
2 |
7 |
5 |
7 |
=
4 |
3 |
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询