Final answer:
The distributive property was used to find the product of 7×30 by splitting it into 7×20 + 7×10, calculating each part separately, and summing up the results to get 210.
Step-by-step explanation:
The student's question involves applying the distributive property to find the product of 7×30. The distributive property states that a(b + c) = ab + ac. In order to find the product using the distributive property, we can break down 30 into 20 + 10. So, 7×30 becomes 7×(20 + 10), which equals 7×20 + 7×10. Calculating each part separately, we get 140 + 70, which sums up to 210. Therefore, the product of 7×30 is 210.