计算题:
(1)﹣(﹣18)+12﹣15+(﹣17)
(2)
(3)
(4)
计算题
(1)(-2)3×+(-1)2003-
;
(2)|-1|+(-2)2+(7-π)0-()-1.
计算:
(1)-3-5+12;
(2)(-81)÷×
÷(-16);
(3)-32-25×(-)2;
(4)-24×(-+
-
);
(5)-14-(1+0.5)×÷4;
(6)-22×-(-1
)2÷(-
)-(-1)5.
计算
(1)
(2)
(3)
(4)
(5)
(6)19×(-12)
(1)(-8)-47+18-(-27)
(2)(-3)×(-9)-8×(-5)
(3)
(4)计算:-5(x2-3)-2(3x2+5)
(5)化简并求值:4y2-(x2+y2)+(x2-4y2),其中x=-28,y=18
试题篮
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