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计算下列各题:(1)(-412)+(+512)+(+4.5)(2)18-8÷(-2)+4×(-5)(3)-12×2+(-2)3÷4-(-3)(4)(134-56-1512)÷(-136

题目详情
计算下列各题:
(1)(-4
1
2
)+(+5
1
2
)+(+4.5)
(2)18-8÷(-2)+4×(-5)
(3)-1 2 ×2+(-2) 3 ÷4-(-3)
(4)(1
3
4
-
5
6
-1
5
12
÷(-
1
36
) .
计算下列各题:
(1)(-4
1
2
)+(+5
1
2
)+(+4.5)
(2)18-8÷(-2)+4×(-5)
(3)-1 2 ×2+(-2) 3 ÷4-(-3)
(4)(1
3
4
-
5
6
-1
5
12
÷(-
1
36
) .
计算下列各题:
(1)(-4
1
2
)+(+5
1
2
)+(+4.5)
(2)18-8÷(-2)+4×(-5)
(3)-1 2 ×2+(-2) 3 ÷4-(-3)
(4)(1
3
4
-
5
6
-1
5
12
÷(-
1
36
) .
计算下列各题:
(1)(-4
1
2
)+(+5
1
2
)+(+4.5)
(2)18-8÷(-2)+4×(-5)
(3)-1 2 ×2+(-2) 3 ÷4-(-3)
(4)(1
3
4
-
5
6
-1
5
12
÷(-
1
36
) .
计算下列各题:
(1)(-4
1
2
)+(+5
1
2
)+(+4.5)
(2)18-8÷(-2)+4×(-5)
(3)-1 2 ×2+(-2) 3 ÷4-(-3)
(4)(1
3
4
-
5
6
-1
5
12
÷(-
1
36
) .

1
2
)+(+5
1
2
)+(+4.5)
(2)18-8÷(-2)+4×(-5)
(3)-1 2 ×2+(-2) 3 ÷4-(-3)
(4)(1
3
4
-
5
6
-1
5
12
÷(-
1
36
) .
1
2
1 2 1 1 2 2
1
2
)+(+4.5)
(2)18-8÷(-2)+4×(-5)
(3)-1 2 ×2+(-2) 3 ÷4-(-3)
(4)(1
3
4
-
5
6
-1
5
12
÷(-
1
36
) .
1
2
1 2 1 1 2 2

2 3
3
4
-
5
6
-1
5
12
÷(-
1
36
) .
3
4
3 4 3 3 4 4
5
6
-1
5
12
÷(-
1
36
) .
5
6
5 6 5 5 6 6
5
12
÷(-
1
36
) .
5
12
5 12 5 5 12 12 ÷(-
1
36
) .
1
36
1 36 1 1 36 36
▼优质解答
答案和解析
(1)原式=(-4.5+4.5)+5.5=5.5;(2)原式=18+4-20=2;(3)原式=-1×2-8÷4+3=-2-2+3=-1;(4)原式=( 7 4 - 5 6 - 17 12 )×(-36)=-63+30+51=18. ...