Final answer:
Use mental math to solve 3,500÷7= 500. To find the result of 3,500÷7, we get 500 by starting with 350÷7=50 and then adding a zero for the extra zero in 3,500. The correct option is A.
Step-by-step explanation:
To use mental math to solve the problem, one could start by simplifying the problem. Begin with the knowledge that
350÷7 =50,
Since 35 divided by 7 equals 5. Since we have an extra zero in 3,500, we can simply add a zero to our previous result of 50, resulting in 500.
3500 ÷ 7 = 500
Therefore, the answer to 3,500÷7 is 500, which corresponds to option A. 500.