麻栗坡盘龙水泥厂原计划全年生产水泥3235吨．结果上半年生产了1785.43吨，下半年生产了1838.65吨．比原计划增产多少吨？
口算 56×= 2﹣=+= 6×= 0.25×4= 57×=÷= 1÷= 21÷=÷= 1÷= 0÷=
计算下面各题．×21×÷5×÷÷÷÷24×÷8．
计算．×9=×0= 0÷=÷= 12×=×=÷=÷=
直接写得数×=÷5=×12=×=÷=÷=×= 1÷== 45×=÷2=÷=×=÷=×0=×= 1﹣=÷=×= 15÷=
口算×6=+=×=×6=÷=÷= 1﹣=﹣=×4=÷=
= 2﹣
=
+
= 6×
= 0.25×4= 57×
=
÷
= 1÷
= 21÷
=
÷
= 1÷
= 0÷
=
×21×
÷5×
÷
÷
÷
÷24
×
÷8．
×9=
×0= 0÷
=
÷
=
×
=
÷
=
÷
=
×
=
÷5=
×12=
×
=
÷
÷
=
×
= 1÷
=
= 45×
=
÷2=
÷
=
×
=
=
×0=
×
= 1﹣
=
÷
=
×
= 15÷
=
×6=
+
=
×
=
×6=
÷
=
÷
= 1﹣
=
﹣
=
×4=
÷
=
粤公网安备 44130202000953号