This grade 3 time worksheet answer key solves all 22 problems of the time, liquid volume and mass worksheet step by step.
Every solution below shows the steps: how the hands or the scale are read, how the jumps on a number line add up, and which operation solves each story. Compare your work, and check that each answer has the right unit.
Grade 3 Time Worksheet Answer Key: problems 1–5
Problem 1: Read the clock
The hour hand is between the 2 and the 3, so the hour is 2. The minute hand is on the 7: \(7 \times 5 = 35\). The time is 2:35.
Problem 2: Almost the next hour
The hour hand is almost at the 11 but has not reached it, so the hour is 10. The minute hand is 2 marks past the 10: \(10 \times 5 = 50\) and \(50 + 2 = 52\). The time is 10:52.
Problem 3: Ten minutes later
Count on 10 minutes: \(25 + 10 = 35\). The clock will show 8:35.
Problem 4: Count by fives and ones
\(9 \times 5 = 45\) and \(45 + 3 = 48\). It is 48 minutes after the hour.
Problem 5: Class on a number line
Jump from 3:10 to 3:30: 20 minutes. Jump from 3:30 to 3:45: 15 minutes. \(20 + 15 = 35\).
The elapsed time is 35 minutes.
Grade 3 Time Worksheet Answer Key: problems 6–10
Problem 6: Movie length
Both times are in the same hour, so subtract the minutes: \(58 – 20 = 38\). Check on a number line: 10 minutes to 1:30, then 28 more minutes to 1:58, and \(10 + 28 = 38\). The movie is 38 minutes long.
Problem 7: Finish time
Jump 5 minutes from 4:25 to 4:30. Then jump 30 more minutes to 5:00. \(5 + 30 = 35\). She finishes at 5:00.
Problem 8: Start time
Jump back 15 minutes from 6:15 to 6:00. Then jump back 25 more minutes to 5:35. \(15 + 25 = 40\). Ethan started at 5:35.
Problem 9: Read the scale
The needle is past 200. The small marks go up by 10. It is 7 marks past 200: \(200 + 70 = 270\).
The scale shows 270 grams.
Problem 10: Grams or kilograms
- A grape is very light: grams.
- A watermelon is heavy: kilograms.
- A pencil is light: grams.
Grade 3 Time Worksheet Answer Key: problems 11–15
Problem 11: Liters or grams
- Milk is a liquid: liters.
- A feather is very light: grams.
- Bathtub water is a liquid: liters.
Problem 12: Read the beaker
The labeled marks go 0, 2, 4, 6, 8. The water stops 1 mark above 6, so it is at 7.
The beaker holds 7 liters.
Problem 13: Compare two beakers
Beaker A has 4 liters. Beaker B has 9 liters. Subtract: \(9 – 4 = 5\). Beaker B has 5 more liters.
Problem 14: Cat and dog
Put the masses together: \(4 + 19 = 23\). The total is 23 kilograms.
Problem 15: Draining the tub
\(52 – 19 = 33\) (take away 20, then add 1 back: \(52 – 20 = 32\) and \(32 + 1 = 33\)). 33 liters are left.
Grade 3 Time Worksheet Answer Key: problems 16–20
Problem 16: Fish bowls
There are 6 equal groups of 3 liters: \(6 \times 3 = 18\).
Jamal uses 18 liters.
Problem 17: Boxes of books
Share equally: \(28 : 4 = 7\), because \(4 \times 7 = 28\). Each box has a mass of 7 kilograms.
Problem 18: Music practice
Add the minutes first: \(25 + 20 = 45\). Start at 4:10 and jump 25 minutes to 4:35. Then jump 20 more minutes to 4:55.
Aisha stops at 4:55.
Problem 19: Trip to school
Jump 15 minutes from 7:45 to 8:00. Then jump 25 more minutes to 8:25.
Diego gets to school at 8:25 AM.
Problem 20: Bags of apples
There are 7 equal groups of 3 kilograms: \(7 \times 3 = 21\).
The apples have a mass of 21 kilograms.
Grade 3 Time Worksheet Answer Key: problems 21–22
Problem 21: Sharing a tank
\(36 : 9 = 4\), because \(9 \times 4 = 36\). Each container gets 4 liters.
Problem 22: Baking recipe
\(250 + 175 = 425\) (\(250 + 100 = 350\), then \(350 + 75 = 425\)). The total is 425 grams.
How to use this grade 3 time worksheet answer key
Read this grade 3 time worksheet answer key after trying each problem yourself, and redo any problem you missed.
See every chapter on the Grade 3 math page.