Video: Interpreting Division as the Number of Items in Each Group

There are 20 children. After making 4 equal groups, there are _ children in each group. Which division equation shows what we did? [A] 20 ÷ 4 = 5 [B] 20 ÷ 5 = 4 [C] 20 ÷ 2 = 10 [D] 20 ÷ 10 = 2

03:32

Video Transcript

There are 20 children. After making four equal groups, there are what children in each group. Which division equation shows what we did? 20 divided by four equals five, 20 divided by five equals four, 20 divided by two equals 10, or 20 divided by 10 equals two.

We know there are 20 children. And they are divided into four equal groups. We have to work out how many children there are in each group. Let’s count how many children there are in the first group: one, two, three, four, five. There are five children in this group. We don’t need to count the children in each group because the question tells us that the groups are equal. So, there are the same number of children in each group. Each group has five children. After making four equal groups, there are five children in each group.

Which of the four division equations shows what we did? We know there are 20 children and each of the division equations begins with 20. But how did we divide the children? We made four equal groups. This is the same as dividing by four. We also know that there were five children in each group. So, the division equation which shows what we did is 20 divided by four equals five.

After making two equal groups, use the division symbol to write an equation that shows how many children will be in each group.

We already know that there are 20 children. And we know that we have to divide them into two equal groups. We have to work out how many children will be in each group. What is 20 divided by two? Let’s count how many children there are in each group. Let’s count in twos because it’s quicker. Two, four, six, eight, 10. There are 10 children in each group.

We didn’t need to count the second group of children because we know that the groups are equal. So, 20 divided by two equals 10. If we divide 20 children into two equal groups, that will be 10 children. And the equation that shows this is 20 divided by two equals 10.

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.