Question

There are 20 slices of bread in a loaf. How many 2-slice sandwiches can you make with 1 loaf? Write a multiplication fact

Answer 1

Combination

We know that there are 20 slices of bread. If we number then, we would have:

slice 1, slice 2, slice 3,..., slice 20.

If we choose slice 1 and slice 2, it would be the same as if we choose slice 2 and slice 1. Then, in other words, the order of the 2 slices doesn’t matter.