Video Transcript
Which of the following is greater, five times 10 or six times seven?
Let’s look at the first multiplication to begin with. We can think of five times 10 as describing five lots of 10. And so, we can count in 10 five times to find the answer. We may know the multiplication fact already. Let’s count in 10s just to check. 10, 20, 30, 40, 50. Five lots of 10 equals 50.
Now, we can compare this with six times seven. And in a similar way, we can think of six times seven as representing six lots of seven. Let’s count in sevens six times. Seven, 14, 21, 28, 35, and 42. Six lots of seven equals 42. Now that we know the value of each multiplication, we can look at them both and decide which is greater. Five times 10 is 50, and six times seven is 42. 50 is greater than 42. And so, the answer to the problem is five times 10.
