计算100÷2= 63÷3= 2800÷7= 6300÷9=200÷5= 84÷2= 2400÷6= 5600÷8=
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． ．
直接写出得数．= 45×= 4﹣1= 0.77+0.3=2+2%= = = （0.18+0.9）÷9=
简算6.4÷+1.25×3 88×． 6×99+6.6．
用简便方法计算，写出简算过程．①5×××②41×101．
+
= 0.77+0.33= 
×4+4×
=
：
= 
×
= a﹣
a×
= 45×
= 4﹣1
= 0.77+0.3=
= 
= （0.18+0.9）÷9=
+1.25×3
88×
． 6×99+6.6．
×
×
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