We have a separate technique for numbers ending with 7, 8 and 9. Though the general method can be applied for any number, it works best when the numbers don’t end with 7, 8 and 9. The general mental multiplication method is to multiply from left to right. Multiplication Tricks for 1 Digit Number General Mental Multiplication for 1 Digit Multiplier So log in or sign up for free to access the entire content. The second example, visible only to logged-in users, will have variations not covered in the first example. The first example, visible to everybody, will introduce you to the multiplication trick. Each mental multiplication method will have two examples. There are several multiplication tricks for mental math in this post. The number 23 is the multiplier – the number which is multiplying the first number. Here the number 43 is the multiplicand – the number being multiplied. Take for example, the multiplication problem 43 x 23. What is a Multiplicand and a Multiplier?īefore we get into multiplication tricks to do mental math, let us quickly define what a multiplicand and a multiplier is. In this post, we will see how to apply this to mental multiplication. Calculating from left to right might feel a bit weird at first, but it will feel natural with a little practice.
By solving from left to right, you will start calling out the answer, before you finish the full calculation. Therefore, the secret of mental math is to do the opposite and calculate from left to right instead. In the first part of Mental Math Tricks, we learnt that mental math becomes harder to do when you calculate from right to left. The Secret of Mental Multiplication Tricks 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. This post is the second part of a Mental Math Tricks series. If you are strong in your single digit multiplication, you can read on. If you are a little rusty, bookmark this post now and make sure you memorize your single digit multiplication tables first. 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.
Prerequisite For These Multiplication Tricksīefore we proceed, you must have mastered single-digit multiplication. Once you learn it, it is really very hard to forget it. Learning the mental multiplication tips in this post will be like learning to ride a bicycle. There are many mental strategies for multiplication, but the mental multiplication strategies covered here can be applied to multiply any set of numbers. The mental multiplication tricks and tips in this post will let you do mental math faster than a calculator entirely in your head.
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