Double means two lots of something. There are two ways to double numbers. You can add the number to itself to get a double. You can also multiply a number by 2 to get a double. When you double a ...

There are 20 creatures altogether. We can use a part-whole model to show the two groups and the total of 20. We can use a part-whole model to show the two groups and the total of 20. We can use a bar ...