用合理的方法进行计算.4080÷12-24×1.5 &nbs...
用合理的方法进行计算.4080÷12-24×1.52.8×5.6+3.4×245+280%63×(107?109)÷1101.5+(735-2.6)×112+(3-112...
用合理的方法进行计算.4080÷12-24×1.5 2.8×5.6+3.4×245+280%63×(107?109)÷1101.5+(735-2.6)×112+(3-112)×94.
展开
1个回答
展开全部
(1)4080÷12-24×1.5
=340-36
=304
(2)2.8×5.6+3.4×2
+280%
=2.8×5.6+3.4×2.8+2.8
=2.8×(5.6+3.4+1)
=2.8×10
=28
(3)63×(
-
)÷
=63×(
-
)×10
=63×
×10-
×63×10
=900-700
=200
(4)1.5+(7
-2.6)×1
+(3-1
)×94
=1.5+(7.6-2.6)×
+1.5×94
=1.5+5×1.5+1.5×94
=(1+5+94)×94
=100×94
=9400
=340-36
=304
(2)2.8×5.6+3.4×2
4 |
5 |
=2.8×5.6+3.4×2.8+2.8
=2.8×(5.6+3.4+1)
=2.8×10
=28
(3)63×(
10 |
7 |
10 |
9 |
1 |
10 |
=63×(
10 |
7 |
10 |
9 |
=63×
10 |
7 |
10 |
9 |
=900-700
=200
(4)1.5+(7
3 |
5 |
1 |
2 |
1 |
2 |
=1.5+(7.6-2.6)×
3 |
2 |
=1.5+5×1.5+1.5×94
=(1+5+94)×94
=100×94
=9400
本回答被提问者采纳
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