题目内容
计算:
(1)0﹣(﹣9)
(2)﹣3﹣4+19﹣11+2
(3)|﹣2|﹣(﹣2.5)﹣|1﹣4|
(4)﹣
×(﹣3)+(﹣
)×5
(5)(﹣36)×(
﹣
+
)
(6)﹣14﹣[3﹣(﹣2)3]÷6
(1)0﹣(﹣9)
(2)﹣3﹣4+19﹣11+2
(3)|﹣2|﹣(﹣2.5)﹣|1﹣4|
(4)﹣
(5)(﹣36)×(
(6)﹣14﹣[3﹣(﹣2)3]÷6
解:(1)原式=0+9
=9;
(2)原式=﹣7+19﹣11+2
=12﹣11+2
=1+2
=3;
(3)原式=2+2.5﹣3
=4.5﹣3
=1.5;
(4)原式=1﹣1=0;
(5)原式=(﹣36)×
﹣(﹣36)×
+(﹣36)×
=﹣27+30﹣28
=﹣25;
(6)原式=﹣1﹣[3﹣(﹣8)]÷6
=﹣1﹣[3+8]÷6
=﹣1﹣
=﹣
=9;
(2)原式=﹣7+19﹣11+2
=12﹣11+2
=1+2
=3;
(3)原式=2+2.5﹣3
=4.5﹣3
=1.5;
(4)原式=1﹣1=0;
(5)原式=(﹣36)×
=﹣27+30﹣28
=﹣25;
(6)原式=﹣1﹣[3﹣(﹣8)]÷6
=﹣1﹣[3+8]÷6
=﹣1﹣
=﹣
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