Question

Please help me
David told Jen, "Write three two-digit numbers. I'll add three more and give you the sum right away." Jen wrote 53, 42, and 31.Then David wrote 46, 57, and 68 and said the sum was 297. Was he right? What pattern did he use?

Answer 1

if you look at what David wrote you can tell that he went up a certain amount of numbers every time. what was the number that he jumped up every time is the question

Answer 2

Thank you

Answer 3

you are welcome