There are 3 rows of 8 cookies, so this array shows 3 x 8 = 24. Now you have to multiply this by 2 to find the answer. This calculation was much easier, when we broke it down into stages.

Connor considered the number of marshmallows on the table in front of Flynn and then wrote “12×4” on his board, intending to challenge him with a large number. Flynn laid out 12 rows of marshmallows, ...