what is the easy way for multiplication
12309*5
Answers
Answer:
Mental Multiplication Tricks & Tips To Do Mental Math Faster In Your Head
Multiplication Tricks For Mental Math
The mental multiplication tricks and tips in this post will let you do mental math faster than a calculator entirely in your head. There are many mental strategies for multiplication, but the mental multiplication strategies covered here can be applied to multiply any set of numbers. Learning the mental multiplication tips in this post will be like learning to ride a bicycle. Once you learn it, it is really very hard to forget it.
Prerequisite For These Multiplication Tricks
Before we proceed, you must have mastered single-digit multiplication. It is a prerequisite that you know your single-digit multiplication tables from 1 x 1 to 9 x 9 before you do mental multiplication of large numbers. If you are a little rusty, bookmark this post now and make sure you memorize your single digit multiplication tables first. If you are strong in your single digit multiplication, you can read on.
This post is the second part of a Mental Math Tricks series. It is highly advised you read the first post of this series – Mental Math Tricks for Speed Math, before you proceed with learning how to do mental math in multiplication.
The Secret of Mental Multiplication Tricks
In the first part of Mental Math Tricks, we learnt that mental math becomes harder to do when you calculate from right to left. Therefore, the secret of mental math is to do the opposite and calculate from left to right instead. By solving from left to right, you will start calling out the answer, before you finish the full calculation. Calculating from left to right might feel a bit weird at first, but it will feel natural with a little practice. In this post, we will see how to apply this to mental multiplication.
What is a Multiplicand and a Multiplier?
Before we get into multiplication tricks to do mental math, let us quickly define what a multiplicand and a multiplier is. Take for example, the multiplication problem 43 x 23. Here the number 43 is the multiplicand – the number being multiplied. The number 23 is the multiplier – the number which is multiplying the first number.
There are several multiplication tricks for mental math in this post. Each mental multiplication method will have two examples. The first example, visible to everybody, will introduce you to the multiplication trick. The second example, visible only to logged-in users, will have variations not covered in the first example. So log in or sign up for free to access the entire content.
Multiplication Tricks for 1 Digit Number
General Mental Multiplication for 1 Digit Multiplier
The general mental multiplication method is to multiply from left to right. Though the general method can be applied for any number, it works best when the numbers don’t end with 7, 8 and 9. We have a separate technique for numbers ending with 7, 8 and 9. For now, let us apply the mental multiplication method to multiply 5321 x 4.
The rule is simple. Multiply from left to right. One digit at a time.
Mental Math Tricks To Do Speed Math - 6 - 1
Left to right multiplication is faster because you have to remember fewer numbers to recall and use later. You will immediately start calling out the answer from the very first step of the calculation.
Now try multiplying 7142 x 6. The procedure is the same as before and you can find it below...
This is the answer...
Hope it helps ♥️✨