Grade 3 Measurement: Mixed Measurement Review

Worked examples

Real problems from the practice worksheets, solved one step at a time.

1. Example 1

   What time is shown on the clock?

   1. The short hour hand is between the 11 and the 12. It has passed the 11 but not the 12 yet, so the hour is still 11.
   2. The long minute hand is 4 small marks past the 8. Count by 5s to the 8: 5, 10, 15, 20, 25, 30, 35, 40. Then count on 4 more by ones: 40 + 4 = 44 minutes.
   3. Hour 11 and 44 minutes: the time is 11:44.

   Answer: 11:44

2. Example 2

   A tank holds 48 liters of water. Then 36 liters leak out. How many liters of water are left?

   1. Water leaking out is taken away: subtract.
   2. 48 − 36 = 12.
   3. There are 12 liters of water left.

   Answer: 12

3. Example 3

   A fish tank has 4 liters of water. Sam adds 24 liters more. How many liters of water are in the fish tank now?

   1. Adding water puts more in the tank: add.
   2. 4 + 24 = 28.
   3. There are 28 liters of water in the fish tank now.

   Answer: 28