Search In This Website

Jumat, 17 April 2026

Mental Math Multiply Between 11 And 19

Example One

19 × 15 = ...

First Step

Sum of first addend number with ones of second addend number.
19 + 5 = 24

Second Step

Add zero at the last digit of the sum number from first step. Because more than tens number multiply with more than tens number equal hundred.
19 + 5 = 240

Third Step

Multiplying ones digit from each addend.
9 × 5 = 45

Fourth Step

Adding the sum number from second step with the sum number from third step.
240 + 45 = 285

Example Two

Practice by yourself of this example!
18 × 14 = ...

Bibliography

https://www.splashlearn.com/
https://www.twinkl.com/

Tidak ada komentar:

Posting Komentar