(1)180+(﹣10)
(2)9﹣(﹣5)
(3)(﹣1.9)+3.6+(﹣10.1)+1.4
(4)(﹣)﹣(﹣)﹣(+)
(5)﹣0.6+1.8﹣5.4+4.2
(6)|﹣15|﹣(﹣2)﹣(﹣5)
计算:
(1)1+2.25+(+3.625)+(-2)+(-1.4)+(-3);
(2)(- +0.75- )×(-36);
(3)[-×(- )+(- )÷]÷(-2)3;
(4)-12015-[-3×(2÷3)2+22]- ;
(5)x2y-3xy2+2yx2-xy2;
(6)5a2-[3a-2(a-3)+4a2].
计算:
(1)12﹣(﹣15)+(﹣23)
(2)3×
(3)﹣23÷8﹣×(﹣2)2
(4)﹣6×.
计算
(1)-9+12-3+8
(2)(-1)+(-)+(+)-(+)
(3)(-3)÷2÷(-3)×(-0.75)
(4)-16-(1-0.5)××[2-(-3)2]
试题篮
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