How to use it
- Pick a factor on the left and one on top.
- Read the product where they meet.
- Download the PDF.
Good to know
- 13 × 13 = 169, 14 × 14 = 196 and 15 × 15 = 225 are worth memorizing for algebra and geometry.
- Multiplying by 15 is the same as multiplying by 10 and adding half of that.
Questions
What is 15 × 15?
225.
Why learn tables past 12?
It helps with mental math, percentages and square numbers in middle school, though it isn't required by most standards.