Make a dot at 3 1/2 inches.
Make a dot at 4 1/4 inches.
Make a dot at 5 3/4 inches.
Write a helper fact for 4 x 80 and use it help you solve.
Write a helper fact for 70 x 5 and use it help you solve.
Use the helper fact to help you fill in the missing factor.
Use the helper fact to help you fill in the missing factor.
Write in factor pairs to make the number sentences true.
Here is a Factor Bingo game mat. You draw a 3. Circle at least two products with a factor of 3.