14. what addition doubles fact can help you find 4 + 3? explain how you know.

Explanation:

Step1: Recall doubles facts

Doubles facts are of the form (a + a). For (4+3), we know that (3 + 3=6) and (4+4 = 8). We can think of (4+3) as one more than (3 + 3).

Step2: Use relationship

Since (4+3=(3 + 1)+3=3+3 + 1). The doubles - fact (3+3) can help. We know that (3+3 = 6), and then (4+3=6 + 1=7).

Answer:

The addition doubles fact (3+3) can help. We know this because (4+3=(3 + 1)+3=3+3 + 1). Since (3+3 = 6), then (4+3=7).