Multiply by a Number between 100-109
Below is a really cool trick to multiply two numbers between 100-109. .
Look at the math problem 102 x 104 = ?
- Multiply one's digits.
- 4 x 2 = 8. It needs to be two digits so write 08.
- Add one's digits.
- 4 + 2 = 6. It needs to be two digits so write 06
- Write 1.
ANSWER is 10608.
Watch the math video below for a detailed explanation!