题目内容
计算:
(1)﹣2﹣5+19﹣13+1=________
(2)
=________
(3)17﹣8÷(﹣2)+4×(﹣3)= ________
(4)(﹣
+
﹣
)×48=________
(5)
=________
(6)
=________
(1)﹣2﹣5+19﹣13+1=________
(2)
(3)17﹣8÷(﹣2)+4×(﹣3)= ________
(4)(﹣
(5)
(6)
解:(1)﹣2﹣5+19﹣13+1,
=﹣7+19﹣12,
=0;
(2)
,
=﹣
×
×
×
,
=﹣
;
(3)17﹣8÷(﹣2)+4×(﹣3),
=17+4﹣12,
=9;
(4)(﹣
+
﹣
)×48,
=
×48,
=24;
(5)
,
=4﹣7+1,
=﹣2;
(6)
,
=﹣
×(2﹣32),
=24.
=﹣7+19﹣12,
=0;
(2)
=﹣
=﹣
(3)17﹣8÷(﹣2)+4×(﹣3),
=17+4﹣12,
=9;
(4)(﹣
=
=24;
(5)
=4﹣7+1,
=﹣2;
(6)
=﹣
=24.
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