Multiplying a 2-digit number by 44

1. Select a 2-digit number.
2. Multiply it by 4.
3. Add the digits from right to left.

   Example:

1. The 2-digit number chosen to multiply by 44 is 36.
2. 4 x 36 = 120 + 24 = 144.
3. The last digit is 4:   _ _ _ 4
4. Add the digits in 144 right to left:
   4 + 4 = 8   _ _ 8 _
   4 + 1 = 5:   _ 5 _ _
   First digit is 1:   1 _ _ _
5. So 44 x 36 = 1584.

   See the pattern?

1. The 2-digit number chosen to multiply by 44 is 69.
2. 4 x 69 = 240 + 36 = 276.
3. The last digit is 6:   _ _ _ 6
4. Add the digits in 276 right to left:
   6 + 7 = 13   _ _ 3 _
   7 + 2 + 1 (carry) = 10:   _ 0 _ _
   First digit + 1 (carry) = 2 + 1 = 3:   3 _ _ _
5. So 44 x 69 = 3036.