Fast Math Trick How To Multiply 2 Two Digit Numbers Why It Works

Fast Math Trick How To Multiply 2 Two Digit Numbers Why It Works This video looks at how the video on multiplying two digit numbers rapidly works, as well as looking at where common mistakes are made. to donate to the tecm. 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.

2 Digit Multiplication Steps Double Digit Multiplication How to multiply 2 digit numbers numbers up to 100 calculating the fast way! using this method you will be able to multiply any pair of two digit numbers. Today i will show my favorite multiplication trick to multiply two digit numbers so fast in only three steps. ️ more tricks: playlis. Just learn one times two digit inside and out, then do this. 69 * 89. go 6*89 = 534. add this to the first two digits of 9*89 = 801. do it: 534 80 = 614. glue the 1 on to the end. we get 6141. this has to be the best way since i'm a low life chemist but can do them in seconds (no pencil or pen). 1. find the average of the two factors you are multiplying. to find the average, add both numbers together, then divide by 2. you can also think of this as the number that both factors are equidistant from. [1] note that this method only works if the average of the two factors is a whole number.

Fast Multiplication Trick For 2 Digit Numbers Youtube Just learn one times two digit inside and out, then do this. 69 * 89. go 6*89 = 534. add this to the first two digits of 9*89 = 801. do it: 534 80 = 614. glue the 1 on to the end. we get 6141. this has to be the best way since i'm a low life chemist but can do them in seconds (no pencil or pen). 1. find the average of the two factors you are multiplying. to find the average, add both numbers together, then divide by 2. you can also think of this as the number that both factors are equidistant from. [1] note that this method only works if the average of the two factors is a whole number. 1, multiply the two inner digits together. 7*8 = 56. 2, multiply the two outer digits together and add this to the previous result. 4*4 56 = 72. 3, multiply this result by 10. 72*10 = 720. 4, multiply the right digit of both numbers and add this to the previous result. 7*4 720 = 748. The approach illustrated in these examples can be used to multiply any two digit number. example 1: multiply 21 and 32. in order to carry out the multiplication by 2 digits we will divide the solution into 3 parts. the number of parts here is obtained by 2x n n 1, where n n represents the value in n digit multiplication.