Given the sum 70 = 25 plus 45 rewrite 25 plus 45 using their GCF and multiplication.
To rewrite 25 plus 45 using their GCF (Greatest Common Factor) and multiplication, we first find the GCF of 25 and 45. The GCF of 25 and 45 is 5.
So, we can rewrite 25 as 5 times 5 and 45 as 5 times 9.
Therefore, 25 plus 45 = (5 times 5) plus (5 times 9).
Simplifying the expression, we get:
25 plus 45 = 5 times (5 plus 9).
Therefore, using the GCF (5) and multiplication, 25 plus 45 would be rewritten as 5 times (5 plus 9).