Using bar modelling to represent multiplication and division word problems

Maths

Measures

You need divide the whole by 5 to find the part. There are five parts which are unknown. The whole is 20.

You need to divide the whole by 20 to find the part. There are five wholes and 1 part.

You need to multiply the part by 10 to find the whole. The whole number is unknown. One part is 2.

You need to multiply the part by 20 to find the whole. The whole number is unknown. The part is 20.

We know Ant had 78 marbles and then had 128 marbles. We don't know how many marbles Addy gave him. The relationship between the known and unknown values are that you have to add both known values together to get the unknown value (125 + 78)

We know Ant had 78 marbles and then had 128 marbles. We don't know how many marbles Addy gave him. The relationship between the known and unknown values are that you have to compare the difference between them (125-78)

We know Ant had 78 marbles and then had 128 marbles. We don't know how many marbles Addy gave him. The relationship between the known and unknown values are that you have to compare the difference between them (78-125)

Match the word problem with the correct bar model

What is the calculation required to solve this word problem?

Using bar modelling to represent multiplication and division word problems

Lesson outcome