Grasp Maths

Year 2

Ask and answer simple questions by counting the number of objects in each category and by comparing categories

Use simple charts and tables to answer questions about totals, favourites and differences.

Back to Year 2Previous lessonProgress: not startedMastery: not started

Lesson overview

Statistics

Once data is organised in a chart or table, we can answer questions by counting totals and comparing categories. We can ask which category has the most, which has the least, and how many more or fewer one category has than another.

Find the favourite

The category with the greatest count is the favourite.

Key: each square stands for 1 vote

Look for the row with the most symbols.

Compare two categories

Cats have 2 more votes than dogs.

Subtract to find how many more one category has than another.

Find the total

Add all the categories to find the whole total.

The total is all the votes together.

Worked example

How many more votes do cats have than fish?

Key: each square stands for 1 vote

PetVotes
Cats5
Dogs3
Fish2
  1. Find the cats total and the fish total.
  2. Cats have 5 votes and fish have 2 votes.
  3. Subtract 2 from 5.
  4. Cats have 3 more votes than fish.

Try it

Use the chart to count totals and compare the categories carefully.

Question 1

Which pet got the most votes?

Key: each square stands for 1 vote

Question 2

Which pet got the fewest votes?

PetVotes
Cats5
Dogs3
Fish2
Question 3

How many votes are there altogether?

Key: each square stands for 1 vote

Question 4

How many more votes do cats have than dogs?

Question 5

Which statement is correct?

PetVotes
Cats5
Dogs3
Fish2

Common mistakes

Watch for these when working through the lesson.

  • Adding when the question asks how many more or fewer.
  • Comparing the wrong two categories.
  • Forgetting to count every category when finding the total.

Related topics

These ideas fit closely with this lesson.

  • Interpret and construct simple pictograms, tally charts, block diagrams and simple tables.
  • Use place value and number facts to solve problems.

Practice next

Independent practice will plug in here

This lesson introduces the idea clearly first. Deeper adaptive practice can sit here later.