Understanding Division and Remainders

The video tutorial explains how to divide 168 by 6 using an array model. It starts by introducing the concept of division with arrays and suggests using known multiplication facts to simplify the process. The tutorial demonstrates subtracting groups of six from 168, using multiples of six to efficiently reach zero. Finally, it counts the total groups subtracted to conclude that 168 divided by 6 equals 28.

What is the main problem being solved using the array model?

• 168 divided by 6

• 168 minus 6

• 168 multiplied by 6

• 168 plus 6

Which method is used to simplify the division process in the video?

• Using a calculator

• Using an array model

• Using a number line

• Using a graph

Why might subtracting six each time from 168 be inefficient?

• It results in negative numbers.

• It doesn't work with large numbers.

• It takes too long to reach zero.

• It requires memorizing the six times table.

What is the purpose of using known facts from the six times table?

• To practice multiplication

• To avoid using a calculator

• To quickly subtract large groups

• To memorize the table

How many groups of six are subtracted initially from 168?

• 20 groups

• 15 groups

• 10 groups

• 5 groups

After subtracting 20 groups of six, what is the remainder?

• 48

• 30

• 18

• 60

What smaller multiple of six is used after subtracting 20 groups?

• Two groups

• Three groups

• Four groups

• Five groups

Why is it necessary to switch to smaller multiples of six?

• To handle the remaining smaller numbers

• To use all numbers in the table

• To avoid errors

• To make the process faster

What is the remainder after subtracting five groups of six from 48?

• 0

• 6

• 12

• 18

How many groups of six are subtracted to reach zero from 18?

• Three groups

• Two groups

• One group

• Four groups