计算
(1)
(2)
(3)
(4)
(5)(-1)3-×[2-(-3)]
(6)
计算
(1)24-(-16)+(-25)-15
(2)9×(-34)
(3)(-)×(-)×(-)
(4)(-8)×(-7.2)×(-2.5)×(+)
(5)
(6)(-+)×36
(7)
(8)
计算或化简:
(1)(-3)+(-2);
(2)(-8)-(+6);
(3);
(4);
(5);
(6);
(7)
(8)(-4)×(-2)+(-8)×(-2)+12×(-2)
若2m=3,2n=2,则2m+2n=( )
A.12 | B.7 | C.6 | D.5 |
计算.(每题4分,共24分)
(1)
(2)
(3)
(4)(-81)
(5)
(6)
计算:
(1)(﹣4)﹣(﹣1)+(﹣6)÷2.
(2)27÷(﹣3)2﹣(﹣)×(﹣8)
计算
(1)
(2)
(3)
(4)
(5)
(6)19×(-12)
试题篮
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