题目内容
计算:
(1)2×(-4)2-4×(-3)2+8;
(2)(-1)8×22+(-3)3÷3;
(3)(-10)2+[(-4)2-(3+32)×2];
(4)(-1)4-(1-0.5)×
×[2-(-2)2].
(1)2×(-4)2-4×(-3)2+8;
(2)(-1)8×22+(-3)3÷3;
(3)(-10)2+[(-4)2-(3+32)×2];
(4)(-1)4-(1-0.5)×
| 1 |
| 3 |
(1)2×(-4)2-4×(-3)2+8=2×16-4×9=32-36=-4;
(2)(-1)8×22+(-3)3÷3=1×4+(-27)÷3=4-9=-5;
(3)(-10)2+[(-4)2-(3+32)×2]=100+[16-12×2]=100+(-8)=92;
(4)(-1)4-(1-0.5)×
×[2-(-2)2]=1-
×[2-4]=1-
×(-2)=1+
=
.
(2)(-1)8×22+(-3)3÷3=1×4+(-27)÷3=4-9=-5;
(3)(-10)2+[(-4)2-(3+32)×2]=100+[16-12×2]=100+(-8)=92;
(4)(-1)4-(1-0.5)×
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 3 |
| 4 |
| 3 |
练习册系列答案
相关题目