How it works
This negative multiplication chart opens filled in from −5 × −5 to 5 × 5, and runs −10 to 10 or −12 to 12. The 2 striped blocks hold every negative answer. A cross of zeros separates them from the positive blocks.
Read the full guide
Where the negative answers sit
Rows run −5 to 5 from the top, columns −5 to 5 from the left. Top right is negative × positive and bottom left is positive × negative: both are striped, and every answer there is below 0. Top left is negative × negative and matches the bottom right block: −3 × −4 = 12, like 3 × 4.
Why a negative times a negative is positive
Follow the pattern. Along the 3 row each step left drops by 3: 6, 3, 0, −3, −6. Along the −3 row each step left climbs by 3: −6, −3, 0, 3, 6. Past the 0 column the climb can only land on positive numbers, so −3 × −1 = 3.
- Work out the numbers first, then the sign: 1 minus sign gives a negative answer, 2 give a positive one.
- Tap any −12: 4 striped squares light up. On −12 to 12 it is 12.
- For practice, choose Partly blank and press Print the chart. Typing an answer below zero needs a minus key.
Questions and answers
What are the rules for multiplying negative numbers?
Same signs give a positive answer, different signs give a negative one, and anything times 0 is 0. So −3 × −4 = 12 and 3 × 4 = 12, while −3 × 4 and 3 × −4 are both −12.
Can I print the negative multiplication chart?
Yes. Press Print the chart for one page: −5 to 5 prints upright, the larger sizes sideways. Choose Blank or Partly blank first for a practice sheet with an answer key on page 2. Paper has no stripes, so minus signs carry the pattern.
How many squares are on a chart from −12 to 12?
625, in 25 rows and 25 columns. 288 hold a negative answer, 288 a positive one and 49 hold 0. Every number from the 1 to 12 chart appears twice as often, and its negative as often: 12 and −12 sit in 12 squares each.