题目内容
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].
练习册系列答案
相关题目
题目内容
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].