Given the sum of 100=64+36 rewrite 64+36 using their GCF and multiplication

The GCF of 64 and 36 is 4.

To rewrite 64+36 using their GCF and multiplication, we can express each number as a multiple of the GCF:

64 = 4 * 16
36 = 4 * 9

So the expression becomes:

64 + 36 = 4 * 16 + 4 * 9