New
New
Year 3

# Use addition and subtraction to solve problems involving bar charts, pictograms and tables

I can use addition and subtraction to solve problems involving bar charts, pictograms and tables.

New
New
Year 3

# Use addition and subtraction to solve problems involving bar charts, pictograms and tables

I can use addition and subtraction to solve problems involving bar charts, pictograms and tables.

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## Lesson details

### Key learning points

1. By looking carefully at the numbers involved, you can choose the most efficient strategy.
2. When numbers are close together, finding the difference is the most efficient strategy.
3. Sometimes, we can use known addition facts to make finding the difference even more efficient.

### Common misconception

Children can often be overwhelmed by the amount of visual data they are presented with.

Expose children to graphical data as much as possible outside of maths lessons. Encourage children to make simple bar charts with cubes so they understand their formation and liken the searching for specific values to search and find books.

### Keywords

• Bar chart - A bar chart uses rectangular bars to show different values.

• Pictogram - A pictogram is a graph that uses pictures to represent information.

• Table - A table has information arranged in rows and columns.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Starter quiz

### 6 Questions

Q1.
What is the missing whole in this bar model?
Q2.
What is the difference between the two values shown?
Q3.
Which of the pairs of numbers have a difference of 30?
270 and 290
230 and 310
260 and 320
Q4.
Which of these is the correct equation represented by this number line?
390 + 450 = 60
390 − 60 = 450
450 = 390 − 60
Correct answer: 390 = 450 − 60
Q5.
Look at the number line. Which number is missing from the equation? 780 − = 60
Correct Answer: 720, seven hundred and twenty
Q6.
Look at the number line. Which number is missing from the equation? + 120 = 270
Correct Answer: 150, one hundred and fifty

## Exit quiz

### 6 Questions

Q1.
Which type of graphical data is being described here: a graph that uses pictures to represent information?
bar chart
table
Q2.
What is the combined mass of the sun bear and panda bear? kg
Correct Answer: 170, 170 kg, 170 kilograms, one hundred and seventy
Q3.
What is the difference in mass between the sun bear and panda bear? kg
Correct Answer: 70, seventy kg, 70 kg, 70 kilograms, seventy kilograms
Q4.
Jun and Alex play a computer game and score points. Their scores are shown in the pictogram below. A full emoji represents 100 points, a half emoji represents 50 points. Which are the correct scores?
Correct answer: Jun got 350, Alex got 200
Jun got 35, Alex got 20
Jun got 3, Alex got 2
Jun got 30, Alex got 20
Q5.
Jun and Alex play a computer game and score points. Their scores are shown in the pictogram below. A full emoji represents 100 points, a half emoji represents 50 points. How much did Jun win by?
Correct Answer: 150 points, 150, one hundred and fifty points, one hundred and fifty
Q6.
The table below shows the scores over two goes for Alex in a netball shooting game. What was the combined total of both goes?
Correct Answer: 710, seven hundred and ten