Directions: Using the digits 1 to 9, at most once each, fill in the boxes to make both expressions true.

What strategies did you use? How many different answers can you make?

Directions: Using the digits 1 to 9, at most once each, fill in the boxes to make both expressions true.

What strategies did you use? How many different answers can you make?

Directions: Using the numbers 1 to 9, using each number only once, complete the following statement:

___ rows and ___ columns create a rectangle of ___ units

- What different possibilities will your students come up with?
- How many of these statements can you create?
- How would increasing the interval from 1 to 19 change the problem?