Grade 3 · Maths · Lessons
To the minute, and how long it took
🕐clock⏰start⏱️minutes🕑end
How long did it take?The big ideaRead the minute, then jump along the line. At the o'clock, mind the sixty.
How it works
Read the hour first, then count the minutes in fives and then ones.
To find when something ends, jump along a number line: to the next hour, then the rest.
At the hour, mind the sixty: 60 minutes make one hour.
Example 1: Read the minute
- The short hand is between 10 and 11. The long hand is between the 3 and the 4.
- The 3 is 15 minutes. Two more little marks make 17.
- The time is 10:17.
Example 2: On the nine
- The short hand is between 12 and 1. The long hand is on the 9.
- 9 × 5 = 45 minutes.
- The time is 12:45.
Example 3: When does it end?
- A show starts at 12:50 and lasts 15 minutes.
- From 12:50 to 1:00 is 10 minutes. 15 − 10 = 5 more minutes.
- It ends at 1:05.
Words to know
- elapsed time
- How much time has passed.
- minute
- A small unit of time. 60 make an hour.
Watch out
- 60 minutes make an hour, so after 12:59 comes 1:00.
- Count in fives, then ones.
- Break the jump into two easy jumps.
Try it
- The long hand is on the 4. How many minutes past the hour?
- A game starts at 2:40 and lasts 30 minutes. When does it end?
- How many minutes are in an hour?
- It is 9:55. What time is it in 10 minutes?
Answers: 1. 20 · 2. 3:10 · 3. 60 · 4. 10:05
For grown-upsAsk 'what time will it be in 25 minutes?' while you wait for something.