Addition And Subtraction

北京校园之星科技有限公司

Addition And Subtraction

应用分类:英文版专区

( 775次评分 )

适应年级:三年级

知识点:万以内加减法

应用介绍

The game is mainly for primary school grade three,corresponding the third grade fourth unit of primary school mathematics of Human education--Addition and subtraction in ten thousand. Remember the addition and subtraction method within 100?