Question

What is the difference of 20 and 11? Follow the steps to use 10 as an anchor to find the difference.
Step 1: 20 - 10 = 10
Step 2: Since 11 is 1 more than 10,1 more needs to be subtracted from 10.
Step 3: Therefore, 20-11
9

Answer 1

The difference between 20 and 11 is 9.

Explanation:

The difference between 20 and 11 can be determined by the following steps using 10 as an anchor :

Step 1: Now, we shall subtract 20 and 10, we have,

$20-10=10$

Step 2: Also, 11 is 1 more than 10, 1 more needs to be subtracted from 10, we get,

$10-1=9$

Step 3: The difference between 20 and 11 is

$20-11=9$

Thus, the difference between 20 and 11 is 9.