Adding Negative and Positive Numbers无法安装怎么办游戏攻略
This is a game in order to help students understanding the concept of adding positive and negative numbers by using a number line. We choose two numbers (-20,20) to add by moving a slider and afterwards we find the sum of two numbers. Afterwards we press the button ok and we see the numbers on the number line and the sum of these numbers and we will see if our choice about sum are right.This is a helpful teaching resource for Students,Parents and Teachers
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