直接写出得数．= 45×= 4﹣1= 0.77+0.3=2+2%= = = ×÷×=
直接写得数．（）×4= = 7.2÷0.4=6×÷6×= 1﹣0.92=
直接写出得数．3﹣1.09= 0.1×4.2= 0.73+0.7=×= ×÷×= =
直接写出得数14÷35= += 0.77+0.33= ×4+4×=：= ×= a﹣a×= ﹣×0=
一个数乘真分数，积小于它本身． ．
= 45×
= 4﹣1
= 0.77+0.3=
= 
= 
×
÷
×
）×4= 
= 7.2÷0.4=
÷6×
×
= 
×
×
=
+
= 0.77+0.33= 
×4+4×
=
：
= 
×
= a﹣
a×
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