Primary 4 Tables and Line Graphs
Keywords
- Row
- Numbers across a table.
- Column
- Numbers down a table.
- Horizontal axis
- The line along the bottom of a graph.
- Vertical axis
- The numbered line up the side of a graph.
- Scale
- The value of each equal interval on an axis.
- Data point
- A dot showing one value on a line graph.
Tables
A table organises information in rows and columns so it is easy to find, compare and work with. Headings tell us what each row and column shows. To read a value, find its row and column, then look at the cell where they meet.
Read a table
The table shows the number of boys and girls who signed up for different CCAs. How many more girls than boys signed up for Choir and Dance altogether?
| CCA | Boys | Girls |
|---|---|---|
| Choir | 18 | 24 |
| Robotics | 27 | 21 |
| Dance | 15 | 30 |
| Art | 22 | 26 |
Complete a table
The table shows lunch trays used from Monday to Thursday. A total of 125 trays were used. How many were used on Tuesday?
| Day | Monday | Tuesday | Wednesday | Thursday |
|---|---|---|---|---|
| Trays | 34 | ? | 28 | 31 |
Try together
In the CCA table, how many boys signed up for Robotics?
Reveal the answer
Find the Robotics row and Boys column. They cross at 27 boys.
Line graphs
A line graph shows how a quantity changes across ordered points, such as days. Read the horizontal axis first, follow up to the dot, then across to the numbered vertical axis. Check the scale before reading or plotting a value.
Read a line graph
The line graph shows the number of storybooks borrowed from a library over five days. How many storybooks were borrowed on Thursday?
Complete a line graph
The graph shows electricity used by a shop. Thursday's point is missing. The shop used 15 kWh less on Thursday than on Wednesday. How much did it use on Thursday?
Try together
In the storybooks graph, how many storybooks were borrowed on Tuesday?
Reveal the answer
Find Tuesday on the bottom axis and follow up to its dot. The dot is at 35, so 35 storybooks were borrowed.