Kazu thinks of $2436\div4$ as an area problem:
> 
He splits the rectangle into parts that are easily divisible by $4$:
> 
**Fill in the blanks.**
$\purple{a}=$ [[☃ input-number 1]] units
$\blue{b}=$ [[☃ input-number 2]] units
$\green{c}=$ [[☃ input-number 3]] units
$w = $ [[☃ input-number 4]] units
$2436 \div 4 =$ [[☃ input-number 5]]