计算:(1)-3+5.3+7-5.3(2)(-2)×32÷(-34)×4(3)-16-|-5|+2×(-12)2(4)(13-14)÷(-112)+(-3)3÷(-3)(5)-12+12÷[(-112

题目简介

计算:(1)-3+5.3+7-5.3(2)(-2)×32÷(-34)×4(3)-16-|-5|+2×(-12)2(4)(13-14)÷(-112)+(-3)3÷(-3)(5)-12+12÷[(-112

题目详情

计算:
(1)-3+5.3+7-5.3
(2)(-2)×
3
2
÷(-
3
4
)×4

(3)-16-|-5|+2×(-
1
2
)2

(4)(
1
3
-
1
4
)÷(-
1
12
)+(-3)3÷(-3)

(5)-
1
2
+
1
2
÷[(-1
1
2
)
3
+(-
1
2
)
2
]×|-2.52|-
1
2
题型:解答题难度:中档来源:不详

答案

(1)-3+5.3+7-5.3
=-8.3+12.3
=4;

(2)(-2)×class="stub"3
2
÷(-class="stub"3
4
)×4

=2×class="stub"3
2
×class="stub"4
3
×4
=16;

(3)-16-|-5|+2×(-class="stub"1
2
)2

=-1-5+2×class="stub"1
4

=-1-5+class="stub"1
2

=-5class="stub"1
2


(4)(class="stub"1
3
-class="stub"1
4
)÷(-class="stub"1
12
)+(-3)3÷(-3)

=﹙class="stub"1
3
-class="stub"1
4
﹚×﹙-12﹚+﹙-3﹚2
=-4+3+9
=8;

(5)-class="stub"1
2
+class="stub"1
2
÷[(-1class="stub"1
2
)
3
+(-class="stub"1
2
)
2
]×|-2.52|-class="stub"1
2

=-class="stub"1
2
+class="stub"1
2
÷[-class="stub"27
8
+class="stub"1
4
class="stub"25
4
-class="stub"1
2

=-class="stub"1
2
+class="stub"1
2
×﹙-class="stub"8
25
﹚×class="stub"25
4
-class="stub"1
2

=-class="stub"1
2
-1-class="stub"1
2

=-2.

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