To find out what 9 x 9 equals, we can think of multiplication as adding the same number many times. So, when we say 9 x 9, it means we need to add the number 9 together a total of 9 times.
Let’s break it down:
- 9 + 9 = 18
- 18 + 9 = 27
- 27 + 9 = 36
- 36 + 9 = 45
- 45 + 9 = 54
- 54 + 9 = 63
- 63 + 9 = 72
- 72 + 9 = 81
- 81 + 9 = 90
After adding 9 together 9 times, we find that 9 x 9 = 81. So, the answer is 81.
Another way to think about it is by using a multiplication table or looking at groups of 9. If you're in a classroom and have 9 boxes, and you have 9 students, you can see that they would fill the boxes using 81 items!