Easily square numbers from 301 to 399.
Example
{% scaleimage l308_example.png %}
Step 1
Square the last 2 digits.
{% scaleimage l308_step1.png %}
Step 2
Multiply the last two digits by 6.
05 x 6 = 30
Step 3
Add two zeros to the end of step 2.
30 x 100 = 3000
Step 4
Add the results of step 1 and step 3.
3000 + 25= 3025
Step 5
Add 90000 to the result of step 4.
90000 + 3025 = 93025
{% scaleimage lesson_underline.png %}