Using 'add' and 'plus' (bar model)
Using the vocabulary of addition: adding a 2-digit number to a single digit with totals up to 20. Bar models are used to illustrate the sum.
Using 'add' and 'plus' (bar model)
Using the vocabulary of addition: adding a 2-digit number to a single digit with totals up to 20. Bar models are used to illustrate the sum.
![Preview of 'Using 'add' and 'plus' (bar model)'](https://content.urbrainy.com/6650/946335804/thumbnail_xlarge/addition-up-to-20-bar-model-1480851844.png)