Work through the levels in order. Type your answer and press Check — open the worked solution if you get stuck. Answers like -6, 3/4 or 0.25 are typed exactly as shown. A ⭐ Bonus Challenge at the end is extra credit — skip it if the rest was hard work.
Level 1 · Warm-up
1 A line graph shows 12 degrees at 9 am and 18 degrees at noon. How many degrees did it rise?
Show worked solution
18 − 12 = 6 degrees.
2 A timeline runs from 1900 to 2000. How many years is that?
Show worked solution
2000 − 1900 = 100 years.
3 A graph shows a plant 4 cm tall in week 1 and 10 cm in week 4. How much did it grow?
Show worked solution
10 − 4 = 6 cm.
Level 2 · Core
4 A line graph rises steadily from 10 at 1 pm to 22 at 4 pm. How much does it rise each hour?
Show worked solution
Rise: 22 − 10 = 12 over 3 hours, so 4 each hour.
5 On a timeline, an event in 1885 is how many years before 1920?
Show worked solution
1920 − 1885 = 35 years.
6 A graph shows sales of 20, 35, 30 and 50 over four weeks. In which week was the biggest RISE from the week before? (type a week number)
Show worked solution
Changes: week 2 +15, week 3 −5, week 4 +20. The biggest rise is into week 4.
Level 3 · Challenge
7 A plant is 5 cm in week 1 and grows 3 cm each week. How tall is it in week 6?
Show worked solution
From week 1 to week 6 is 5 weeks of growth: 5 × 3 = 15 cm, so 5 + 15 = 20 cm.
8 A timeline shows a school built in 1878 and rebuilt 96 years later. In which year was it rebuilt?
Show worked solution
1878 + 96 = 1974.
9 A temperature graph reads 8 degrees at 6 am, rises 2 degrees an hour until noon, then falls 1 degree an hour. What is the temperature at 3 pm?
Show worked solution
6 am to noon is 6 hours rising: 8 + 12 = 20 degrees. Noon to 3 pm is 3 hours falling: 20 − 3 = 17 degrees.