问题
解答题
幼儿园买玩具,一班买45件,二班买36件,三班比二班多15件,平均每个班买玩具几件?
答案
[45+36+(36+15)]÷3,
=[81+51]÷3,
=132÷3,
=44(件),
答:平均每个班买玩具44件.
幼儿园买玩具,一班买45件,二班买36件,三班比二班多15件,平均每个班买玩具几件?
[45+36+(36+15)]÷3,
=[81+51]÷3,
=132÷3,
=44(件),
答:平均每个班买玩具44件.