Year 3

# Using bar modelling to represent multiplication and division word problems

Year 3

# Using bar modelling to represent multiplication and division word problems

## Slide deck

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## Lesson details

### Key learning points

- In this lesson, we will use our knowledge of bar models to match bar models to multiplication and division word problems.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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### 4 Questions

Q1.

3kg and 600g + 2kg and 400g

1005 kg g

5kg and 1000g

5kg and 1kg

Q2.

Fill in the blanks

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 (78-125)

Q3.

Match the word problem with the correct bar model

Option 1

Option 3

Q4.

What is the calculation required to solve this word problem?

250g - 625g

625g + 250g

### 3 Questions

Q1.

What statements describe this bar model.

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.

Q2.

Match the bar model to the word problem.

Option 1

Option 2

Q3.

Match the bar model to the word problem.

Option 1

Option 3