早教吧作业答案频道 -->数学-->
脱式计算.(能简算的要简算)(1)37.5%×365+58÷1365(2)(12+17-25+314)×70(3)0.75×65+34×34+75%(4)25×32×77×125.
题目详情
脱式计算.(能简算的要简算)
(1)37.5%×365+
÷
(2)(
+
-
+
)×70
(3)0.75×65+
×34+75%
(4)25×32×77×125.
(1)37.5%×365+
5 |
8 |
1 |
365 |
(2)(
1 |
2 |
1 |
7 |
2 |
5 |
3 |
14 |
(3)0.75×65+
3 |
4 |
(4)25×32×77×125.
▼优质解答
答案和解析
(1)37.5%×365+
÷
=37.5%×365+
×365
=(37.5%+
)×365
=1×365
=365;
(2)(
+
-
+
)×70
=
×70+
×70-
×70+
×70
=35+10-28+15
=45-28+15
=17+15
=32;
(3)0.75×65+
×34+75%
=0.75×65+0.75×34+0.75
=0.75×(65+34+1)
=0.75×100
=75;
(4)25×32×77×125
=25×(4×8)×77×125
=(25×4)×(125×8)×77
=100×1000×77
=100000×77
=7700000.
5 |
8 |
1 |
365 |
=37.5%×365+
5 |
8 |
=(37.5%+
5 |
8 |
=1×365
=365;
(2)(
1 |
2 |
1 |
7 |
2 |
5 |
3 |
14 |
=
1 |
2 |
1 |
7 |
2 |
5 |
3 |
14 |
=35+10-28+15
=45-28+15
=17+15
=32;
(3)0.75×65+
3 |
4 |
=0.75×65+0.75×34+0.75
=0.75×(65+34+1)
=0.75×100
=75;
(4)25×32×77×125
=25×(4×8)×77×125
=(25×4)×(125×8)×77
=100×1000×77
=100000×77
=7700000.
看了 脱式计算.(能简算的要简算)...的网友还看了以下:
急.做好了加...下列数值哪些是不等式x+3>6的解?哪些不是?-4,-2.5,0,1,2.5,3 2020-05-14 …
(1+1/5-0.1+2/15)x(0.2-1/10+2/15+3/1/6)-(1+1/5-1/1 2020-05-21 …
下表是小张同学一周中简记储蓄罐中钱的进出情况表(存入记为“+”)星期日一二三四五六元+16+5.0 2020-07-08 …
下列合法的数组定义是()A.chara[6]={"string"};B.inta[5]={0,1,2 2020-11-06 …
合法的数组定义是()。A.inta[5]=b[5];B.inta[5]={0,1,2,3,4,5}; 2020-11-06 …
在下面的数组定义中,合法的是()在下面的数组定义中,合法的是()。A.inta[]="string" 2020-11-06 …
把表格按规律补充完整8,6,5,3,65,1,5,2,43,5,0,1,2(),(),(),(),( 2020-11-08 …
1,2/3,3/4,4/5,...0,1/2,0,1/4,0,1/6数列的通项为?是否收敛?是否两数 2020-11-22 …
负2减负9+3-负1=?7.2-3.6+负3.6-负2.5=?0-1+2-3+4-5=?4.5-2. 2021-01-14 …
某同学册斜面的机械效率.斜面坡度小车重G/N斜面高度h/m沿斜面拉力F/N斜面长S/m较缓5/0.1 2021-01-23 …