The first instance of the **Writing numbers to 1000** exercise is under the Early math Math Mission. This exercise continues practice on the naming scheme and grouping patterns in numbers up to 1000.

## Types of problems

There is one type of problem that shows up in this exercise:

- Select the correct representations: This problem starts with a number (usually three digit, but there are a few two-digit numbers mixed in) and then asks the student to select correct representations from a multiple select list. Some are in words, some are by hundred, tens and ones, and some are as addition problems.

## Strategies

This exercise has only one problem type so as soon as it can be understood and predicted, this exercise is easy to make accuracy and speed badges.

- There could be one to four correct answers among the four multiple select options.
- The written selection and the addition problem selection are always correct.
- Among the grouping selections, the correct one will be the one that starts with hundreds (or tens in the case of two-digit numbers) since these are the largest groups on numbers less than 1000.

## Real-life Applications

- Knowing how to count is essential for learning algebra and the higher maths, and counting is used for almost everything humans do.