题目内容

计算:
(1)|-21|+|-10|+|+9|;
(2)-4.3-(-6.3);
(3)(-10)÷(-
1
3
)
×(-4);
(4)(-24)×(
1
6
-
1
4
+
1
8
);
(5)4+3×(-2)3+33;           
(6)(-3)2×(-
1
3
2-(-2)3÷(-
1
2
2
(1)原式=21+10+9
=40;

(2)原式=-4.3+6.3
=2;

(3)原式=-10×(-3)×(-4)
=-120;

(4)原式=-24×
1
6
+24×
1
4
-24×
1
8

=-4+6-3
=-1;

(5)原式=4+3×(-8)+27
=4-24+27
=4+3
=7;

(6)原式=9×
1
9
-(-8)×4
=1+32
=33.
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