计算：（-2）0+8+12+1．-数学

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• 计算：9-2×2-1-|-3|+20130．-数学
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• 计算：(2)0+(12)-1+16-22-数学
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• 8+12+1-(3-1)0．-数学
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• 计算题：①(-1)2007-|-2|+(π-2007)0-6×tan30°；②解方程：22x-1+51-2x=1．-数学
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• 解答下列各题（1）计算：8+(-12)-1-4sin30°+(3-2010)0（2）已知a=3，b=-1，求3+a2-b2a2-ab÷12a的值．-数学
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