1. **Problem:** Calculate $5 \times 7 \times 2$ using the Commutative or Associative Property.
2. **Formula and Properties:**
- Commutative Property of Multiplication: $a \times b = b \times a$
- Associative Property of Multiplication: $(a \times b) \times c = a \times (b \times c)$
3. **Solution:**
- Using Associative Property, group $7$ and $2$ first:
$$5 \times (7 \times 2)$$
- Calculate inside the parentheses:
$$7 \times 2 = 14$$
- Multiply the result by $5$:
$$5 \times 14 = 70$$
4. **Answer:**
$$70$$
Multiplication Properties E8687A
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