You know that 7*7 is 49, and 6*6 is 36. Now you know it will be 6._. 6*7 is 42, so think of that as 6.5^2. You know that it will most likely be less than 6.8 since it is so close to being 7*7, which is 4 above your desired number. This leaves 6.6 to 6.8 as your estimate. Personally, I would go straight in the middle and choose 6.7.
I hope this helps!
ASA because when you look at the corners it marks the angles and then a line for the side in between it. That’s how I always looked at it
2² · 3³ · 5 · 7
Is the answer and the lowest common multiple is 1260.
Hope this helps :)
