Three Digit Multiplication Tricks Maths Logic In this math trick video we look at an easy way to multiply numbers where the ten’s digit is the same and the one’s digit adds up to 10. example: to find 52 × 58. take the ten’s digit and multiply it by the next highest number. 5 × 6 = 30. next, multiply the one’s digit. 2 × 8 = 16. the answer is 3016. 3. add a 0, divide by 2 multiply by 5 trick. one of the easy multiplication tips for a number, is that of 5. simply add a 0 to the end of the number, and then divide the whole thing by 2. e.g., 5 x 37 is 370 divided by 2, which is 185. 5 x 88 is 880 divided by 2, which is 440. 4.
Three Digit Multiplication Tricks Maths Logic For single digit, 2 digit and even for 3 digit numbers, it is easy to do the multiplication. but for larger numbers which have more digits such as 4, 5, 6, 7,etc., it takes a long time to solve it. therefore, we will learn here some magic maths tricks for fast calculation. these tricks can also be used to prepare for competitive exams. 3. double digit round. one of my personal favorites is the double digit round. this technique is useful for multiplying two double digit numbers. first, think of a nice, round number to which both of our numbers are closest. take 92 x 98, for example. both are close to 100, so we subtract them from 100 to get 8 and 2. Let us solve an example to demonstrate this. example: multiply 347 by 3. solution: let us multiply 347 by 3 using the steps given below. step 1: arrange the numbers 347 and 3 in columns according to their place values as shown below. step 2: multiply 3 by each digit of 347. when 3 is multiplied by 7, we get 21. This is a quick way to multiply two digit numbers by 11 in your head. separate the two digits in your mind. add the two digits together. place the number from step 2 between the two digits. if the number from step 2 is greater than 9, put the one's digit in the space and carry the ten's digit. examples: 72 x 11 = 792.
Three Digit Multiplication Tricks Maths Logic Let us solve an example to demonstrate this. example: multiply 347 by 3. solution: let us multiply 347 by 3 using the steps given below. step 1: arrange the numbers 347 and 3 in columns according to their place values as shown below. step 2: multiply 3 by each digit of 347. when 3 is multiplied by 7, we get 21. This is a quick way to multiply two digit numbers by 11 in your head. separate the two digits in your mind. add the two digits together. place the number from step 2 between the two digits. if the number from step 2 is greater than 9, put the one's digit in the space and carry the ten's digit. examples: 72 x 11 = 792. Welcome to the multiplying 3 digit by 3 digit numbers (a) math worksheet from the long multiplication worksheets page at math drills . this math worksheet was created or last revised on 2021 02 17 and has been viewed 1,821 times this week and 8,597 times this month. it may be printed, downloaded or saved and used in your classroom, home. 12×12 = 144. and this gives us one more trick. when the numbers we are multiplying are separated by 2 (example 7 and 5), then multiply the number in the middle by itself and subtract one. see this: 5×5 = 25 is just one bigger than 6×4 = 24. 6×6 = 36 is just one bigger than 7×5 = 35. 7×7 = 49 is just one bigger than 8×6 = 48.
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