Mathematics
Grade 3
15 min
Interpret data in tables
Interpret data in tables
Tutorial Preview
1
Introduction & Learning Objectives
Learning Objectives
Read and understand the title, columns, and rows of a data table.
Locate specific pieces of information within a table by matching a row and a column.
Use addition to find the total of two or more categories in a table.
Use subtraction to compare two values in a table to find the difference.
Use multiplication or division to solve problems about equal groups shown in a table.
Solve two-step word problems using data from a table and a mix of operations (+, -, ×, ÷).
Have you ever seen a scoreboard at a basketball game? 🏀 That's a data table that helps everyone know who is winning!
In this lesson, we will become data detectives! We will learn how to read special charts called data tables and use all our math skills—adding, subtracting, multiplying, a...
2
Key Concepts & Vocabulary
TermDefinitionExample
Data TableA chart that organizes information, called data, into columns and rows to make it easy to read and compare.A list of your classmates' names in one column and the number of books they read in another column.
DataA collection of facts, especially numbers.In a table about pets, the numbers '5' for dogs and '8' for cats are data.
ColumnA vertical line of information in a table that goes up and down.In a lunch menu table, all the food items for Monday would be in one column.
RowA horizontal line of information in a table that goes from left to right.In a table about class pets, all the information about the hamster (its name, its food) would be in one row.
TitleThe name of the table that tells you what information it contains.A table sho...
3
Core Formulas
Finding a Total (Sum)
Part 1 + Part 2 = Total
Use addition when a question asks for a total, such as 'how many in all?' or 'how many altogether?' for different categories.
Finding the Difference (Compare)
Larger Number - Smaller Number = Difference
Use subtraction when a question asks you to compare two numbers, using phrases like 'how many more?', 'how many fewer?', or 'what is the difference?'.
Finding a Total of Equal Groups
Number of Groups × Number in Each Group = Total
Use multiplication when the table shows a number of groups and the same amount in each group, and you need to find the total.
4 more steps in this tutorial
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Challenging
The table shows the number of animals on a farm.
**Farm Animals**
| Animal | Number |
|---------|--------|
| Chickens| 24 |
| Pigs | 8 |
| Cows | 10 |
The farmer sells half of his chickens and 3 of his pigs. How many animals are left on the farm in total?
A.20
B.27
C.19
D.31
Challenging
The table shows the ingredients needed to make 1 batch of muffins.
**Muffin Recipe (1 batch)**
| Ingredient | Amount |
|------------|--------|
| Flour | 3 cups |
| Sugar | 1 cup |
| Eggs | 2 |
If you want to make 4 batches of muffins, how many more cups of flour than cups of sugar will you need in total?
A.2
B.4
C.8
D.12
Challenging
The table shows the number of pages in three different books.
**Book Page Counts**
| Book | Pages |
|---------|-------|
| Book 1 | 80 |
| Book 2 | 100 |
| Book 3 | 120 |
Anna reads all of Book 1 and half of Book 2. Ben reads all of Book 3. How many more pages has Anna read than Ben?
A.10
B.20
C.30
D.50
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