FILL • CHECK • FIND THE PATTERN
12×12 multiplication grid
Fill in this 12x12 multiplication chart and check your answers a few facts at a time. Explore the square-number diagonal across 144 product cells, or print the grid to finish with a pencil.
12×12 multiplication grid
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1 practice page + 1 answer page · 2 total · Letter · landscape
Find the square-number diagonal
Turn on “Highlight the square-number diagonal” to mark cells where both factors match. Work out 1 × 1, 2 × 2, and onward to 12 × 12 = 144. These products lie along the diagonal because their row and column labels are equal.
Use a fact you already know
Fill 3 × 8, then find 8 × 3 across the diagonal. The product stays 24 when the factors swap. Complete a familiar row first, then use mirrored facts to fill part of a less familiar row.
Practice with the 12×12 grid
The square-number diagonal highlights cells with equal factors, such as 4 × 4 = 16. Other cells can also contain square numbers, such as 2 × 8 = 16.
Enter a product in any cell and choose “Check answers.” The message counts correct answers, entries to try again, and empty cells. Individual checked cells have text labels for their result as well as color. Use the arrow keys to move between cells, or Tab to follow the form.
Do I need to fill every cell before checking?
No. Check one fact, one row, or a region whenever you like. Empty cells stay empty and are counted separately. “Clear grid” removes your entries so you can start again.
How is this different from the 1–12 reference chart?
This grid starts empty and lets you type and check products. The 1–12 multiplication chart starts filled for looking up facts and also offers printable blank and missing-number versions.
What is included in the landscape PDF?
The fixed download contains a blank grid and a separate answer key. “Download custom PDF” uses the current settings and entries. The custom PDF contains the 12×12 product grid with factors 1 through 12, any numeric entries you have made, and an optional separate filled answer key. The diagonal highlight carries over when selected. Both Letter and A4 use landscape pages.
Does 12×12 include zero?
No. It means 12 data rows and 12 data columns, using factors 1–12, plus headers. Adding zero through 12 would make 13 data rows and columns; that is not the grid shown here.
Are entries saved when I leave?
No. Entries stay in this page while you work. Download or print a copy to keep your progress; leaving or reloading the page resets the grid.