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计算:(1)312+(−12)−(−13)+223(2)(-5)×6+(-125)÷(-5)(3)1+(-2)+|-2-3|-5(4)(23−14−38+524)×(−48)(5)8+2×32-(-2×3)2(6)−12012×[(−2)5−32−514÷(−17)]−2.5.
题目详情
计算:
(1)3
+(−
)−(−
)+2
(2)(-5)×6+(-125)÷(-5)
(3)1+(-2)+|-2-3|-5
(4)(
−
−
+
)×(−48)
(5)8+2×32-(-2×3)2
(6)−12012×[(−2)5−32−
÷(−
)]−2.5.
3
+(−
)−(−
)+2
(2)(-5)×6+(-125)÷(-5)
(3)1+(-2)+|-2-3|-5
(4)(
−
−
+
)×(−48)
(5)8+2×32-(-2×3)2
(6)−12012×[(−2)5−32−
÷(−
)]−2.5.
1 1 2 2
1 1 2 2
1 1 3 3
2 2 3 3
(
−
−
+
)×(−48)
(5)8+2×32-(-2×3)2
(6)−12012×[(−2)5−32−
÷(−
)]−2.5.
2 2 3 3
1 1 4 4
3 3 8 8
5 5 24 24
22
−12012×[(−2)5−32−
÷(−
)]−2.5.12012×[(−2)5−32−
÷(−
)]−2.5.12012×[(−2)5−32−
÷(−
)]−2.5.2012×[(−2)5−32−
÷(−
)]−2.5.)5−32−
÷(−
)]−2.5.)5−32−
÷(−
)]−2.5.5−32−
÷(−
)]−2.5.32−
÷(−
)]−2.5.32−
÷(−
)]−2.5.2−
÷(−
)]−2.5.
5 5 14 14
1 1 7 7
(1)3
1 |
2 |
1 |
2 |
1 |
3 |
2 |
3 |
(2)(-5)×6+(-125)÷(-5)
(3)1+(-2)+|-2-3|-5
(4)(
2 |
3 |
1 |
4 |
3 |
8 |
5 |
24 |
(5)8+2×32-(-2×3)2
(6)−12012×[(−2)5−32−
5 |
14 |
1 |
7 |
3
1 |
2 |
1 |
2 |
1 |
3 |
2 |
3 |
(2)(-5)×6+(-125)÷(-5)
(3)1+(-2)+|-2-3|-5
(4)(
2 |
3 |
1 |
4 |
3 |
8 |
5 |
24 |
(5)8+2×32-(-2×3)2
(6)−12012×[(−2)5−32−
5 |
14 |
1 |
7 |
1 |
2 |
1 |
2 |
1 |
3 |
2 |
3 |
(
2 |
3 |
1 |
4 |
3 |
8 |
5 |
24 |
(5)8+2×32-(-2×3)2
(6)−12012×[(−2)5−32−
5 |
14 |
1 |
7 |
2 |
3 |
1 |
4 |
3 |
8 |
5 |
24 |
22
−12012×[(−2)5−32−
5 |
14 |
1 |
7 |
5 |
14 |
1 |
7 |
5 |
14 |
1 |
7 |
5 |
14 |
1 |
7 |
5 |
14 |
1 |
7 |
5 |
14 |
1 |
7 |
5 |
14 |
1 |
7 |
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14 |
1 |
7 |
5 |
14 |
1 |
7 |
5 |
14 |
1 |
7 |
5 |
14 |
1 |
7 |
▼优质解答
答案和解析
(1)原式=3
-
+
+2
=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1 1 12 2 2-
+
+2
=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1 1 12 2 2+
+2
=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1 1 13 3 3+2
=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
2 2 23 3 3=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1 |
2 |
1 |
2 |
1 |
3 |
2 |
3 |
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1 |
2 |
1 |
2 |
1 |
3 |
2 |
3 |
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1 |
2 |
1 |
3 |
2 |
3 |
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1 |
3 |
2 |
3 |
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
2 |
3 |
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
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