Row 1: There are three leaves which equals to 21. So, we get 3 bunch of leaves = 21, if we divide both sides by 3 then we get the result that 1 bunch of leaves is equal to 7. So, we have 7 + 7 + 7 = ...

The old way to multiply required a student to add the products of 36 x 4 and 36 x 2. The trick is to add that 0 at the end of the second product. Your fifth-grader asks you for help with the day's ...