CASTING OUT 9s - Easy trick to check arithmetic calculations- Casting out 9's - Amazing Maths
Автор: Amazing Maths
Загружено: 2021-10-15
Просмотров: 1129
Описание:
CANT FINISH YOUR EXAMS ON TIME? Try this.
Maths exams always take us a lot of time to complete mainly because we have to check out our calculations multiple times.
And many a times, we dont identify the mistake done, but rather do the same mistake again while checking.
That does cost us time and marks as well. here is an easy technique to check out your arithmetic answers, and identify mistakes.
CASTING out 9s
Explained for Addition and Multiplication
Time Stamps:
0:00 Introduction
1:15 Shortcut - Casting out 9's
1:47 Adding digits of a larger number
2:44 Easy trick to verify simple addition
3:42 Addition of 2 large numbers
5:01 Identify mistakes
6:19 Verify simple multiplication
7:21 Multiplication of 2 large numbers.
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You can also try out these mental math techniques.
• Mental Mathematics
For other useful Maths videos:
/ @amazingmaths
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