Grade 3 Math Practice Test: Time, Measurement and Bar Graphs
- Time, Measurement and Bar Graphs
- 15 questions
- 20 minutes
This test covers telling time to the minute, finding elapsed time, solving problems with liters, grams and kilograms, and reading scaled bar graphs, picture graphs and line plots. Tip: for elapsed time, count up to the next hour first, then add the rest.
Tap an option to mark your answer. You can change your mind, or tap the same option again to leave the question blank. The correct answers and explanations appear when you finish the test.Tap an option to answer; tap it again to leave the question blank.
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Question 1
Look at the clock.
What time does the clock show?
Correct answer: A
The short hour hand is between 4 and 5, so the hour is 4. The long minute hand points to 7, and 7 groups of 5 minutes is 35 minutes, so the time is 4:35. It is not 5:35, because the hour hand has not reached the 5 yet.
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Question 2
Soccer practice starts at 3:45 p.m. and lasts 50 minutes. At what time does practice end?
Correct answer: B
From 3:45 to 4:00 is 15 minutes. That leaves 50 − 15 = 35 more minutes, so practice ends at 4:35 p.m.
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Question 3
Ella starts reading at 2:20 p.m. She stops reading at 3:05 p.m. For how many minutes does she read?
Correct answer: C
From 2:20 to 3:00 is 40 minutes, and from 3:00 to 3:05 is 5 more minutes, so she reads for 45 minutes. Subtracting 220 from 305 gives 85, but that is wrong because an hour has 60 minutes, not 100.
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Question 4
Omar's bus ride to school takes 25 minutes. The bus gets to school at 8:10 a.m. At what time did the bus leave Omar's stop?
Correct answer: D
Count back 10 minutes from 8:10 to reach 8:00, then 15 more minutes to reach 7:45. The time 8:35 a.m. comes from adding 25 minutes instead of counting back.
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Question 5
Which object has a mass of about 1 kilogram?
Correct answer: B
A pineapple has a mass of about 1 kilogram (1,000 grams). A paper clip and a grape are each only a few grams at most, and a bicycle has a mass of many kilograms.
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Question 6
A fish tank holds 36 liters of water. Dad fills the empty tank using a bucket that holds 4 liters. How many full buckets of water does he need?
Correct answer: C
Divide the total by the size of one bucket: 36 ÷ 4 = 9 buckets. Check: 9 × 4 = 36 liters. The answers 32 and 40 come from subtracting or adding instead of dividing.
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Question 7
A bag of oranges has a mass of 3 kilograms. A bag of potatoes has a mass that is 5 kilograms more than the bag of oranges. What is the total mass of the two bags?
Correct answer: A
First find the potatoes: 3 + 5 = 8 kilograms. Then add both bags: 3 + 8 = 11 kilograms. The answer 8 kilograms is only the mass of the potatoes.
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Question 8
Graph A
Students in Mr. Diaz's class voted for their favorite fruit. The bar graph shows the number of students who chose each fruit.
How many students chose apple?
Correct answer: D
The apple bar ends halfway between the lines for 10 and 20. The number halfway between 10 and 20 is 15, so 15 students chose apple.
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Question 9
Graph A (see above):
How many more students chose banana than grape?
Correct answer: C
The banana bar shows 25 students and the grape bar shows 10 students. 25 − 10 = 15 more students chose banana. The answer 35 comes from adding the two numbers.
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Question 10
Graph A (see above):
How many students voted in all?
Correct answer: A
Add all four bars: 15 + 25 + 10 + 20 = 70 students. Misreading the apple bar as 10 or 20 instead of 15 leads to 65 or 75.
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Question 11
Graph A (see above):
Which two fruits were chosen by the same total number of students as banana?
Correct answer: B
Banana got 25 votes. Apple and grape together got 15 + 10 = 25 votes. Apple and orange make 35, and grape and orange make 30.
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Question 12
In a picture graph about books read, each ★ stands for 4 books. Ryan's row shows 6 stars. How many books did Ryan read?
Correct answer: D
Each star means 4 books, so 6 stars mean 6 × 4 = 24 books. The answer 6 counts the stars but forgets the key, and 10 adds 6 and 4 instead of multiplying.
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Question 13
Mia measured the lengths of some leaves to the nearest quarter inch. Each X stands for one leaf.
How many leaves are longer than 112 inches?
Correct answer: B
Leaves longer than 112 inches are at 134 inches (2 leaves) and 2 inches (1 leaf), so 2 + 1 = 3 leaves. The answer 7 wrongly includes the 4 leaves that are exactly 112 inches long.
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Question 14
The library opens at 1:10 p.m. Jada gets there 20 minutes before it opens. At what time does Jada get to the library?
Correct answer: A
Count back 10 minutes from 1:10 to 1:00, then 10 more minutes to 12:50 p.m. The time 1:30 p.m. is 20 minutes after the library opens, not before.
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Question 15
Nora's class has gym from 10:15 a.m. to 10:55 a.m. Right after gym, the class has music until 11:30 a.m. How many minutes do gym and music last in all?
Correct answer: C
Gym lasts 40 minutes (10:15 to 10:55) and music lasts 35 minutes (10:55 to 11:30), so together they last 40 + 35 = 75 minutes, which is 1 hour 15 minutes. Subtracting 1015 from 1130 gives 115, which treats an hour as 100 minutes.
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