育红小学2008年植树情况如下．根据图解答下面的问题：（1）植树最多与最少的年级相差 棵（2）全校一共植树 棵？
直接写出得数．==========
直接写出得数： 2.4×= ；= ；：0.75= ；÷ =0.1； 0.180%×= ； 32÷（1+60%）= ； 2﹣1= ； ×40=．
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直接写得数．÷3= 10÷=÷=×=÷=×= 4×= 1﹣=×60=×=×=××=÷5= 30÷=÷=×÷=
直接写出得数． 16×=×=×=÷=÷= 9÷=××=
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：0.75= ；
÷ =0.1；
= ； 32÷（1+60%）= ； 2﹣1
= ； ×40=
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÷3= 10÷
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= 4×
= 1﹣
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×60=
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÷5= 30÷
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= 9÷
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