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Quizzes > High School Quizzes > Mathematics

3rd Grade Rounding Practice Quiz

Interactive quiz to master rounding skills

Difficulty: Moderate
Grade: Grade 3
Study OutcomesCheat Sheet
Colorful paper art promoting Round Up Rally, a math practice quiz for elementary students.

Round 47 to the nearest ten.
40
45
50
60
47 is closer to 50 than it is to 40 because the difference is 3 compared to 7. When rounding to the nearest ten, numbers with a ones digit of 5 or more round up.
What is 52 rounded to the nearest ten?
52
55
50
60
The ones digit in 52 is 2, which is less than 5. This means the number rounds down to 50 when rounding to the nearest ten.
Round 25 to the nearest ten.
35
20
30
25
Since the ones digit is exactly 5, the standard rounding rule tells us to round up. Therefore, 25 becomes 30 when rounded to the nearest ten.
Round 68 to the nearest ten.
65
68
60
70
The ones digit in 68 is 8, which is greater than 5, so the number rounds up to 70. This follows the basic rule of rounding.
Which number is closest when rounding 33 to the nearest ten?
33
30
40
35
In 33, the ones digit is 3, which is less than 5. This means the number rounds down to 30, making it the closest multiple of ten.
Round 146 to the nearest ten.
140
145
150
160
The ones digit in 146 is 6, which leads to rounding up. Therefore, 146 rounds to 150 when rounding to the nearest ten.
What is 357 rounded to the nearest hundred?
400
350
360
300
When rounding 357 to the nearest hundred, the tens digit is 5 or more, causing the number to round up. Thus, 357 rounds to 400.
Round 289 to the nearest ten.
300
280
289
290
The ones digit in 289 is 9, which means the number rounds up when rounding to the nearest ten. Therefore, 289 becomes 290.
What is 611 rounded to the nearest hundred?
610
620
600
700
For 611, the last two digits form 11, which is less than 50. This means the number rounds down to 600 when rounding to the nearest hundred.
Round 74 to the nearest ten.
70
74
75
80
Since the ones digit in 74 is 4, which is less than 5, the number rounds down to 70. This is the correct rounding for tens.
Round 135 to the nearest ten.
145
135
130
140
In 135, the ones digit is 5, which means the number rounds up according to standard rounding rules. Thus, 135 becomes 140.
Which is the best estimate of 492 when rounded to the nearest hundred?
400
450
500
490
492 is much closer to 500 than to 400 when rounding to the nearest hundred. The combined tens and ones digits push the value upward.
Round 825 to the nearest hundred.
800
900
850
825
In 825, the last two digits are 25, which is less than 50. Therefore, when rounding to the nearest hundred, the number rounds down to 800.
Round 764 to the nearest ten.
760
764
770
750
The ones digit in 764 is 4, which is below 5, so the number rounds down to 760. This is a straightforward application of the rounding rule.
What is 918 rounded to the nearest hundred?
900
1000
920
910
For 918, the digits after the hundred place form 18, which is less than 50. Hence, the number rounds down to 900 when rounding to the nearest hundred.
If you round 453 to the nearest ten and then round that result to the nearest hundred, what is the final number?
500
400
460
450
First, 453 rounds to 450 because the ones digit is 3. Then, when 450 is rounded to the nearest hundred, it rounds up to 500 as it meets the halfway rule.
A classroom has 129 students. For seating arrangements, they round the number to the nearest ten. What number do they use?
130
120
125
140
Since the ones digit of 129 is 9, the number rounds up to 130. Rounding to the nearest ten simplifies the number, making 130 the best estimate.
A store sold 299 apples in one day. What is the best rounded figure to the nearest hundred?
299
200
250
300
299 is only 1 less than 300 and is much closer to 300 than to 200. Thus, when rounding to the nearest hundred, 299 rounds to 300.
When rounding 836 to the nearest ten, what is the rounded value?
830
840
850
836
The ones digit in 836 is 6, which means that the number rounds up when rounding to the nearest ten. Therefore, 836 rounds to 840.
A recipe calls for 432 grams of flour, but for simplicity, the chef rounds it to the nearest hundred. How many grams does the chef use?
500
430
400
450
For 432, the tens and ones digits form 32, which is less than 50. This means that when rounding to the nearest hundred, the number rounds down to 400.
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Study Outcomes

  1. Understand the concept of rounding numbers.
  2. Apply rounding rules to whole numbers in various contexts.
  3. Analyze place values to determine rounding direction.
  4. Solve interactive rounding problems accurately.
  5. Evaluate the effectiveness of rounding strategies on test-like scenarios.

3rd Grade Rounding Practice Cheat Sheet

  1. Understand the concept of rounding - Rounding is like giving numbers a quick trim so they're easier to work with, adjusting them to the nearest ten, hundred, or beyond to simplify your calculations. Think of it as a friendly shortcut that keeps you accurate without the clutter of extra digits. Read more
  2. mathsisfun.com
  3. Learn the "5 or more, round up" rule - Imagine the number 5 as a tiny party crasher who swings the digits up by one when it appears right after your rounding place. If it's 4 or below, nothing happens and you keep your number steady. Read more
  4. edubloxtutor.com
  5. Practice rounding to the nearest ten - Grab any number and look at its ones digit: if it's 5 or more, bump up to the next ten; if not, stick with the lower ten. Play around with numbers like 47 or 32 to see how this rule dances in action. Read more
  6. twinkl.com
  7. Practice rounding to the nearest hundred - Now shift your attention to the tens digit; if it's 5 or more, your number hops up to the next hundred, otherwise it slides down. Numbers like 374 or 450 become your new best friends during this drill. Read more
  8. edubloxtutor.com
  9. Use number lines to visualize rounding - Drawing a number line helps you spot which milestone number - ten, hundred, or more - is closer to your target. Place your number on the line and see whether it leans left or right for a clearer decision. Read more
  10. k12mathworksheets.com
  11. Apply rounding in real-life scenarios - Whether you're estimating grocery costs or timing a road trip, rounding turns complex figures into manageable numbers at a glance. It's your trusty sidekick for budgeting, planning, and all those everyday math moments. Read more
  12. edubloxtutor.com
  13. Differentiate between rounding and estimation - Rounding follows strict rules - like "5 or more, round up" - while estimation is a freestyle guess that values speed over precision. Knowing when to use each will skyrocket your problem-solving prowess. Read more
  14. twinkl.com
  15. Practice with interactive worksheets - Dive into hands-on exercises that quiz you on rounding to the nearest ten, hundred, and beyond. Gamify your learning and track your progress as you become a rounding whiz. Read more
  16. byjus.com
  17. Use mnemonic devices to remember rules - Catchy rhymes like "Five or more, let it soar; four or less, let it rest" make rounding rules stick in your brain. Craft your own fun phrases to make numbers party-ready every time. Read more
  18. twinkl.com
  19. Check your work by estimating - After rounding, eyeball the result to ensure it feels right in context - like seeing if your dinner bill estimate seems plausible. A quick reality check can save you from unexpected math slip-ups. Read more
  20. education.com
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