题目内容
计算:
(1)-4-28-(-29)+(-24);
(2)4×(-3)2-5×(-2)+6;
(3)(-
+
-
)÷(-
);
(4)(-2)3÷|-32+1|-(-5
)×
.
(1)-4-28-(-29)+(-24);
(2)4×(-3)2-5×(-2)+6;
(3)(-
3 |
4 |
7 |
12 |
5 |
9 |
1 |
36 |
(4)(-2)3÷|-32+1|-(-5
1 |
2 |
4 |
11 |
(1)-4-28-(-29)+(-24)
=-4-28+29-24
=-56+29
=-27;
(2)4×(-3)2-5×(-2)+6
=4×9+10+6
=36+10+6
=52;
(3)(-
+
-
)÷(-
)
=(-
+
-
)×(-36)
=
×36-
×36+
×36
=27-21+20
=26;
(4)(-2)3÷|-32+1|-(-5
)×
=(-8)÷|-9+1|+2
=(-8)÷8+2
=-1+2
=1.
=-4-28+29-24
=-56+29
=-27;
(2)4×(-3)2-5×(-2)+6
=4×9+10+6
=36+10+6
=52;
(3)(-
3 |
4 |
7 |
12 |
5 |
9 |
1 |
36 |
=(-
3 |
4 |
7 |
12 |
5 |
9 |
=
3 |
4 |
7 |
12 |
5 |
9 |
=27-21+20
=26;
(4)(-2)3÷|-32+1|-(-5
1 |
2 |
4 |
11 |
=(-8)÷|-9+1|+2
=(-8)÷8+2
=-1+2
=1.

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