Tricks Flashcards

1
Q

How to cancel numbers in this equation:
9 D
- = -
7 105

A

9 D
- = -
1 15

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Triangles shortcuts

A

3,4,5
5,12,13
8,15,17
7,24,25

How well did you know this?
1
Not at all
2
3
4
5
Perfectly