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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
4
-3×0.75;
(5)[-
1
6
+(-1
1
2
)-(-
2
3
)]×24;
(6)(-4)2-6×
4
3
+2×(-1)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
4
-3×0.75
=(-1.53+0.53-3)×0.75
=-4×0.75
=-3

(5)[-
1
6
+(-1
1
2
)-(-
2
3
)]×24
=-
1
6
×24+(-1
1
2
)×24-(-
2
3
)×24
=-4-36+16
=-40+16
=-24

(6)(-4)2-6×
4
3
+2×(-1)3÷(-
1
2

=16-8-2÷(-
1
2

=8+4
=12