Multiplying 2 digits by 2 digits with area models

The first instance of  is under the 4th Grade Math Mission. This exercise uses a visual area model to better understand the concepts of multiplication and place-value.

Types of Problems
There is one type of problem in this exercise:


 * 1) Multiply the numbers: This problem has a multiplication problem involving 2-digit numbers. The multiplication is performed via the distributive property and the student has to give the solutions to the pairwise products of the digits in addition to the final answer.2by2a.png

Strategies
This exercise is easy to get accuracy because it is still just multiplication in the end. The speed badges are medium because there are several answers that need to be individually filled in.


 * 1) Multiplying by the number in the calculator first avoids the adding step at the end.
 * 2) A calculator can be easily used to program something to split this up for the student.
 * 3) Be careful, the number along the top and the side of the area model is sometimes the first number of the product and sometimes the second. You do have to read carefully.