早教吧作业答案频道 -->数学-->
(1)(-910)+(-710)(2)(-12)+(+310)(3)(-20)-(-8)(4)(-59)-41(5)4×(-125)(6)(-8)÷(-10)(7)-20+(-14)-(-18)-13(8)-234-567+34-17(9)42×(-23)+(-34)÷(-0.25)(10)(130-715-56)×(-30).
题目详情
(1)(-
)+(-
)
(2)(-
)+(+
)
(3)(-20)-(-8)
(4)(-59)-41
(5)4×(-125)
(6)(-8)÷(-10)
(7)-20+(-14)-(-18)-13
(8)-2
-5
+
-
(9)42×(-
)+(-
)÷(-0.25)
(10)(
-
-
)×(-30).
9 |
10 |
7 |
10 |
(2)(-
1 |
2 |
3 |
10 |
(3)(-20)-(-8)
(4)(-59)-41
(5)4×(-125)
(6)(-8)÷(-10)
(7)-20+(-14)-(-18)-13
(8)-2
3 |
4 |
6 |
7 |
3 |
4 |
1 |
7 |
(9)42×(-
2 |
3 |
3 |
4 |
(10)(
1 |
30 |
7 |
15 |
5 |
6 |
▼优质解答
答案和解析
(1)原式=-
-
=-
=-
;
(2)原式=-
+
=-
=-
;
(3)原式=-20+8=-12;
(4)原式=-59-41=-100;
(5)原式=-500;
(6)原式=
=
;
(7)原式=-20-14+18-13=-34+5=-29;
(8)原式=-2
+
-5
-
=-2-6=-8;
(9)原式=-24+
×4=-24+3=-21;
(10)原式=-1+14+25=28.
9 |
10 |
7 |
10 |
16 |
10 |
8 |
5 |
(2)原式=-
5 |
10 |
3 |
10 |
2 |
10 |
1 |
5 |
(3)原式=-20+8=-12;
(4)原式=-59-41=-100;
(5)原式=-500;
(6)原式=
8 |
10 |
4 |
5 |
(7)原式=-20-14+18-13=-34+5=-29;
(8)原式=-2
3 |
4 |
3 |
4 |
6 |
7 |
1 |
7 |
(9)原式=-24+
3 |
4 |
(10)原式=-1+14+25=28.
看了 (1)(-910)+(-71...的网友还看了以下:
小学数学问题计算(能简算的要简算)要过程4920*24-17x124/7*(13/14+15/16 2020-05-17 …
(1)2x-1.7+3/10=5又2/5(2)4/5÷(1/2-4/11×1/12)(3)[3(1 2020-05-17 …
计算下面各题,能简算的要简算.125×9.3×0.0813.7×102-2×13.7(6.7+6. 2020-06-07 …
计算:(1)76+137+80+139+74+143+83+137+84+87+137+78+75 2020-06-13 …
4×3/13+3×5/7+17×2/13+5×4/7简便计算. 2020-06-13 …
(2012•莲都区模拟)(1)34x+18=12(2)X:8=14:134(3)85×0.75+4 2020-07-17 …
用简便方法计算1又6/13-2/9-7/9+7/134又7/17-(2又7/17-2.375)6. 2020-07-17 …
计算,能简算的要简算(1)13-125-135(2)1-6÷3×13(3)75×80%+24×45 2020-07-18 …
98+265+202=3200÷4÷25=17×23-23×7=99×38+38=25+75-25 2020-07-18 …
计算:2×13×551÷17×17÷5112×7÷3÷725×13×43×125×7×825×2× 2020-07-27 …