Simple Math Tricks You Weren’t Taught at School

Do you want to get better at math, impress your teacher, and fool your friends? It’s not your fault if you’re terrible at math - maybe you just didn’t know these simple math tricks.
TIMESTAMPS
Adding fractions 0:18
Subtracting fractions 1:16
Multiplying by 9 using your hands 1:43
Learn the nine times table 2:38
Multiplying large numbers in your head 3:05
Multiplying by 11 3:40
Memorizing PI 4:47
Adding fractions 5:24
Math pyramids 5:50
Converting Celsius to Fahrenheit and vice versa 6:42
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