小题1:4的算数平方根是________小题2:=________.-八年级数学

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• 化简=_________-九年级数学
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• -八年级数学
• —Did Alan enjoy seeing his old friends yesterday?—Yes, he did. He his old friends for a long time.A
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• 计算：（1）；（2）。-八年级数学
• 当X时，-九年级数学
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• 在函数中，自变量的取值范围是（）A．且B．且C．D．-九年级数学
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• 计算：（1）（2）：-八年级数学
• 友情提示：请同学们做完上面考题后，再认真检查一遍，估计一下你的得分情况，如果你全卷得分低于60分（及格线），则本题的得分将计入全卷得分，但计入后全卷总分最多不超过60分-八年级数学
• 小题1:2＋－4小题2:．-九年级数学
• 若则．-九年级数学
• 如果把棱长分别为3.51cm,2.26cm的两个正方体铁块熔化，制成一个大的正方体铁块，那么这个大正方体铁块的棱长是多少？（用一个式子表示，并用计算器进行计算，最后结果保留2个-八年级数学
• -八年级数学
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• 计算(每小题6分,共18分)小题1:(1)小题2:(2)小题3:(3)-八年级数学
• 已知，那么的值为（）．A．－1B．1C．D．-九年级数学
• 计算：。-八年级数学
• 下列运算正确的是[]A、-（-x+1）=x+1B、C、D、（a-b）2=a2-b2-九年级数学
• (10分)观察下列等式：①；②；③；……回答下列问题：小题1:（1）利用你观察到的规律，化简：小题2:（2）计算：-九年级数学
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• 若成立，则-九年级数学
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• 的算术平方根是()-八年级数学
• 判断正误：对的画“√”，错的画“×”．（1）2+3=5；（______）（2）8-3=5；（______）（3）2+2=22；（______）（4）32-2=3；（______）（5）22+2=22；
• 如果有意义，那么字母的取值范围是【】A．B．C．D．-九年级数学
• 计算：（每小题8分，共计16分）小题1:（1）（+）－（－）小题2:（2）-九年级数学
• 观察下列各式：①、，②、③、，…请用含n(n≥1)的式子写出你猜想的规律：-九年级数学
• 函数中自变量x的取值范围是（）A．x≥B．x≠3C．x≥且x≠3D．-九年级数学