某机床厂2006年机床产量统计图如下：（1）平均每月生产机床多少台？（2）第四季度比第一季度增产百分之几？（3）第二季度比第三季度少百分之几？
直接写出得数．÷=+=÷=×= 1÷0.25=÷1=÷3=﹣=
直接写出得数．÷=×3= 6×=+×7= 100÷10%=÷1=÷7=
=÷21= 2.4×= 42÷=×= 10×10%= 3﹣1= 3π= 1﹣+=×÷×=
÷8= 1÷0.01=×6=÷= 1÷=+=﹣=÷=+=×=
直接写得数．========
÷
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+
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÷
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×
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÷1=
÷3=
﹣
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÷
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×3= 6×
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×7=
÷1=
÷7=
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÷21= 2.4×
= 42÷
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×
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= 3π= 1﹣
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×
÷
×
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÷8= 1÷0.01=
×6=
÷
= 1÷
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+
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﹣
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÷
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+
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×
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