![Arithmetricks: 50 Easy Ways to Add, Subtract, Multiply, and Divide Without a Calculator: Julius, Edward H.: 9780471106395: Amazon.com: Books Arithmetricks: 50 Easy Ways to Add, Subtract, Multiply, and Divide Without a Calculator: Julius, Edward H.: 9780471106395: Amazon.com: Books](https://images-na.ssl-images-amazon.com/images/I/51AvSIL8ShL.jpg)
Arithmetricks: 50 Easy Ways to Add, Subtract, Multiply, and Divide Without a Calculator: Julius, Edward H.: 9780471106395: Amazon.com: Books
![Math Tricks: Multiplication (1 of 30) How to Quickly Check Your Multiplication Without a Calculator! - YouTube Math Tricks: Multiplication (1 of 30) How to Quickly Check Your Multiplication Without a Calculator! - YouTube](https://i.ytimg.com/vi/pqDb-xL8sJg/hqdefault.jpg)
Math Tricks: Multiplication (1 of 30) How to Quickly Check Your Multiplication Without a Calculator! - YouTube
![SOLVED:You can use binomial multiplication to multiply numbers without a calculator. Say you need to multiply 13 times 15. Think of 13 as 10 + 3 and 15 as 10 + 5. ( SOLVED:You can use binomial multiplication to multiply numbers without a calculator. Say you need to multiply 13 times 15. Think of 13 as 10 + 3 and 15 as 10 + 5. (](https://cdn.numerade.com/previews/a372c3f6-3612-43fc-ab96-2e87404d1fe5.gif)
SOLVED:You can use binomial multiplication to multiply numbers without a calculator. Say you need to multiply 13 times 15. Think of 13 as 10 + 3 and 15 as 10 + 5. (
![How to do quick multiplication without a calculator? The method of lines | Engineersdaily | Free Engineering Database How to do quick multiplication without a calculator? The method of lines | Engineersdaily | Free Engineering Database](https://3.bp.blogspot.com/-T1V_N62xHI0/V2bUxPm0qSI/AAAAAAAAGvk/G_Oq0ylFDBUajI_7haktp1EKk_tZa9LAgCLcB/s1600/multiply%2528engineersdaily.com%2529.png)