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计算:(1)16-(-23)+(-49);(2)-4×2+(-2)×(-4);(3)26×(-3)2+175÷(-5);(4)-1.53×0.75+0.53×34-3×0.75;(5)[-16+(-112)-(-23)]×24;(6)(-4)2-6×43+2×(-1)3÷(-12).
题目详情
计算:
(1)16-(-23)+(-49);
(2)-4×2+(-2)×(-4);
(3)26×(-3)2+175÷(-5);
(4)-1.53×0.75+0.53×
-3×0.75;
(5)[-
+(-1
)-(-
)]×24;
(6)(-4)2-6×
+2×(-1)3÷(-
).
(1)16-(-23)+(-49);
(2)-4×2+(-2)×(-4);
(3)26×(-3)2+175÷(-5);
(4)-1.53×0.75+0.53×
3 |
4 |
(5)[-
1 |
6 |
1 |
2 |
2 |
3 |
(6)(-4)2-6×
4 |
3 |
1 |
2 |
▼优质解答
答案和解析
(1)16-(-23)+(-49)
=39-49
=-10
(2)-4×2+(-2)×(-4)
=-8+8
=0
(3)26×(-3)2+175÷(-5)
=26×9-35
=234-35
=199
(4)-1.53×0.75+0.53×
-3×0.75
=(-1.53+0.53-3)×0.75
=-4×0.75
=-3
(5)[-
+(-1
)-(-
)]×24
=-
×24+(-1
)×24-(-
)×24
=-4-36+16
=-40+16
=-24
(6)(-4)2-6×
+2×(-1)3÷(-
)
=16-8-2÷(-
)
=8+4
=12
=39-49
=-10
(2)-4×2+(-2)×(-4)
=-8+8
=0
(3)26×(-3)2+175÷(-5)
=26×9-35
=234-35
=199
(4)-1.53×0.75+0.53×
3 |
4 |
=(-1.53+0.53-3)×0.75
=-4×0.75
=-3
(5)[-
1 |
6 |
1 |
2 |
2 |
3 |
=-
1 |
6 |
1 |
2 |
2 |
3 |
=-4-36+16
=-40+16
=-24
(6)(-4)2-6×
4 |
3 |
1 |
2 |
=16-8-2÷(-
1 |
2 |
=8+4
=12
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