早教吧作业答案频道 -->其他-->
计算:(1)-2-5+19-13+1=(2)12×(−56)×311÷114=-111-111(3)17-8÷(-2)+4×(-3)=(4)(-16+34-112)×48=(5)(−2)2−|−7|−2×(−12)=(6)−45×[(−12)÷(0.75−1)+(−2)5]=
题目详情
计算:
(1)-2-5+19-13+1=______
(2)
×(−
)×
÷1
=
(3)17-8÷(-2)+4×(-3)=______
(4)(-
+
-
)×48=______
(5)(−2)2−|−7|−2×(−
)=______
(6)−
×[(−
)÷(0.75−1)+(−2)5]=______
(1)-2-5+19-13+1=______
(2)
1 |
2 |
5 |
6 |
3 |
11 |
1 |
4 |
-
1 |
11 |
-
1 |
11 |
(3)17-8÷(-2)+4×(-3)=______
(4)(-
1 |
6 |
3 |
4 |
1 |
12 |
(5)(−2)2−|−7|−2×(−
1 |
2 |
(6)−
4 |
5 |
1 |
2 |
▼优质解答
答案和解析
(1)-2-5+19-13+1,
=-7+19-12,
=0;
(2)
×(−
)×
÷1
,
=-
×
×
×
,
=-
;
(3)17-8÷(-2)+4×(-3),
=17+4-12,
=9;
(4)(-
+
-
)×48,
=
×48,
=24;
(5)(−2)2−|−7|−2×(−
),
=4-7+1,
=-2;
(6)−
×[(−
)÷(0.75−1)+(−2)5],
=-
×(2-32),
=24.
=-7+19-12,
=0;
(2)
1 |
2 |
5 |
6 |
3 |
11 |
1 |
4 |
=-
1 |
2 |
5 |
6 |
3 |
11 |
4 |
5 |
=-
1 |
11 |
(3)17-8÷(-2)+4×(-3),
=17+4-12,
=9;
(4)(-
1 |
6 |
3 |
4 |
1 |
12 |
=
1 |
2 |
=24;
(5)(−2)2−|−7|−2×(−
1 |
2 |
=4-7+1,
=-2;
(6)−
4 |
5 |
1 |
2 |
=-
4 |
5 |
=24.
看了 计算:(1)-2-5+19-...的网友还看了以下:
2*3*4分之1=2分之1*(2*3分之1+4*5分之1)的规律2*3*4分之1=2分之1*(2*3 2020-03-31 …
口算.510÷10=510÷100=5.1×10=5.1×100=0.12×6=7.8÷3=0.6 2020-04-07 …
口算.510÷10=510÷100=5.1×10=5.1×100=0.12×6=7.8÷3=0.6 2020-04-07 …
(3+5/7-2/3)×(1/5+1/7+1/13)-(1/5-1/7+1/13)×3+(1/5+ 2020-04-27 …
、按一定规律排列的一串数:1/1,-1/3,2/3,-3/3,1/5,-2/5,3/5,-4/5, 2020-05-14 …
5.5×5分之4+3.6÷1.2-6又2分之1×0.6=?(2又6分之5-1又4分之1+3又9分之 2020-06-06 …
1/1乘3+1/3乘5..+1/(2n-1)(2n+1)=?想问为甚要除以二?上述得出的规律都不用 2020-07-13 …
0.39+1/5+39/100+4/5=1/2-(5/6-3/8)=8/19-6/19+1/107 2020-07-17 …
1.-1/3+15.5+(-2/3)2.-11.5+4.53.1/7-2/54.4.7-3.4-( 2020-07-19 …
能简则简.(1)3/4+3/4÷3(2)1/3÷1/2-5/4x2/5(3)4/9÷[5/9-能简则 2020-11-26 …