How to... Solve Puzzles | How to Multiply by 4 - Shortcut Method - Quickly Without a Calculator - Step by Step Tutorial @howto...solvepuzzles | Uploaded 7 years ago | Updated 8 hours ago
This is a great maths trick when you want to multiply by 4. This shortcut method gives you the correct answer quickly and often you can do the calculations in your head. Watch the video for all the details. Impress your friends with your ability to multiply very quickly.
This is a great maths trick when you want to multiply by 4. This shortcut method gives you the correct answer quickly and often you can do the calculations in your head. Watch the video for all the details. Impress your friends with your ability to multiply very quickly.
