Calling all budding math whizzes eager to level up! Our free rounding quiz is here to help you master rounding off numbers with ease, from rounding to tens drills to rounding to hundreds puzzles. You'll dive into fun questions such as figuring out between which two tens is the number 253, practice rounding to tens with real-life examples, and sharpen your skills in rounding to hundreds before moving on. Whether you're gearing up for a big exam or simply craving a brain-boosting challenge, this engaging third-grade practice and interactive rounding and estimation quiz adapts to your pace and builds your numerical intuition. Ready to test yourself and boost your confidence? Take the quiz now!
Round 34 to the nearest ten.
20
35
30
40
When rounding to the nearest ten, you look at the ones digit. Since the ones digit is 4, which is less than 5, you round down, making 34 into 30. For more examples, see MathisFun.
Round 68 to the nearest ten.
60
80
70
65
To round 68 to the nearest ten, note the ones digit is 8 (which is ?5), so you round the tens place up from 6 to 7, giving 70. You can review this rule at MathisFun.
Round 143 to the nearest hundred.
140
200
100
150
When rounding to the nearest hundred, look at the tens digit. Here the tens digit is 4 (which is less than 5), so you round down from 143 to 100. Learn more about rounding to hundreds at MathisFun.
Round 550 to the nearest hundred.
600
500
550
650
To round 550 to the nearest hundred, the tens digit is 5, so you round the hundreds place up, making it 600. This is the standard '5 or more, round up' rule. More details at MathisFun.
Round 5 to the nearest ten.
0
5
10
20
When rounding 5 to the nearest ten, the ones digit is 5, so you round the tens place up from 0 to 1, giving 10. Rounding 5 is a classic example of the '5 and above rounds up' rule. See more at MathisFun.
Round 24 to the nearest ten.
30
20
24
25
For 24, the ones digit is 4, which is less than 5, so you round down to 20 when rounding to the nearest ten. The general rule is '0 - 4 round down; 5 - 9 round up.' More examples at MathisFun.
Round 145 to the nearest ten.
150
140
145
160
The ones digit in 145 is 5, so when rounding to the nearest ten, you increase the tens place by 1, resulting in 150. This follows the standard rounding rule for a 5. See MathisFun for details.
Round 257 to the nearest ten.
250
270
200
260
To round 257 to the nearest ten, look at the ones digit (7), which is ?5, so round the tens digit up from 5 to 6, yielding 260. This follows the '5 or more rounds up' rule. More at MathisFun.
Round 257 to the nearest hundred.
350
200
250
300
When rounding to the nearest hundred, inspect the tens digit of 257, which is 5, so you round the hundreds place up from 2 to 3, giving 300. The key rule is '5 and above round up.' See MathisFun.
Round 788 to the nearest hundred.
800
780
750
700
The tens digit in 788 is 8, which is ?5, so the hundreds digit 7 rounds up to 8, making 800. This uses the familiar rounding rule for 5 and above. Review at MathisFun.
Which two tens is 53 between?
53 and 63
60 and 70
40 and 50
50 and 60
Any number from 50 up to (but not including) 60 falls between the tens 50 and 60. Since 53 is in that range, those are the bounding tens. More on intervals at MathisFun.
Which two hundreds is 450 between?
500 and 600
400 and 500
450 and 550
300 and 400
Numbers from 400 up to (but not including) 500 fall between the hundreds 400 and 500. Since 450 lies in that range, it's between those two hundreds. Learn more about ranges at MathisFun.
Round 499 to the nearest hundred.
500
400
600
450
For 499, the tens digit is 9 (?5), so you round the hundreds digit up from 4 to 5, making 500. The '5 or more, round up' rule applies. More at MathisFun.
Round 345 to the nearest ten.
340
350
360
345
The ones digit in 345 is 5, so you round the tens digit up from 4 to 5, resulting in 350. Always remember '5 and above round up.' See MathisFun.
Which two tens is 295 between?
290 and 300
295 and 305
280 and 290
300 and 310
Values from 290 up to 300 fall between those two tens. Since 295 is in that span, the correct interval is 290 and 300. For number line concepts, visit MathisFun.
Which two hundreds is 389 between?
380 and 480
200 and 300
100 and 200
300 and 400
Numbers from 300 up to 400 cover the range for 389. Since 389 sits in that interval, it is between 300 and 400. For more on intervals: MathisFun.
Round 345 to the nearest hundred.
300
400
350
250
When rounding 345 to the nearest hundred, the tens digit is 4 (below 5), so you round down to 300. The rule is '0 - 4 round down; 5 - 9 round up.' More details at MathisFun.
Round 145 to the nearest ten.
160
150
145
140
With a ones digit of 5, 145 rounds up to 150 when rounding to the nearest ten. This is the standard method for handling a 5 in the ones place. See MathisFun.
Round 445 to the nearest ten.
440
445
450
460
The ones digit in 445 is 5, so when rounding to the nearest ten, you round up the tens digit from 4 to 5, yielding 450. This follows the '5 and up to next ten' rule. More at MathisFun.
Round 445 to the nearest hundred.
450
400
500
430
To round 445 to the nearest hundred, look at the tens digit (4). Since it's less than 5, you round down, giving 400. This uses the '0 - 4 round down' rule. See more at MathisFun.
Round 755 to the nearest hundred.
800
750
760
700
In 755, the tens digit is 5, so to round to the nearest hundred, increase 7 by 1, giving 800. The '5 and above rounds up' rule applies here. Learn more at MathisFun.
Round 50 to the nearest hundred.
150
100
0
50
When rounding 50 to the nearest hundred, the tens digit is 5, so you apply the '5 and above round up' rule to the hundreds place, giving 100. Halfway cases always round up in this convention. More at MathisFun.
Round 150 to the nearest hundred.
150
250
100
200
The tens digit in 150 is 5, so by rounding to the nearest hundred you round up from 1 to 2, getting 200. Exact halfway values follow the 'round up' standard. More at MathisFun.
Round 150 to the nearest ten.
130
140
160
150
Since 150 ends in 0, it is already a multiple of ten. When rounding to the nearest ten, numbers already on a ten stay the same. Learn more about these special cases at MathisFun.
Round 115 to the nearest ten.
110
115
120
130
To round 115 to the nearest ten, look at the ones digit (5). Because it's 5, you round the tens place up from 1 to 2, giving 120. This demonstrates the rule that a 5 in the ones place always rounds up. More examples at MathisFun.
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Hard1/7
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AI Study Notes
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Study Outcomes
Understand place value for rounding -
Explain how digits in the ones, tens, and hundreds places influence rounding decisions when working with rounding off numbers.
Identify number ranges -
Determine between which two tens any given number falls, such as finding the tens interval for 253.
Apply rounding to tens -
Use standard rounding rules to round numbers accurately to the nearest ten.
Apply rounding to hundreds -
Use standard rounding rules to round numbers accurately to the nearest hundred, such as converting 478 to 500.
Evaluate rounding quiz performance -
Review and assess your results in this rounding quiz to reinforce understanding and identify areas for improvement.
Cheat Sheet
Place Value Foundations -
Mastering rounding to tens and hundreds starts with a solid grasp of place value: ones, tens, and hundreds. For example, knowing that the number 253 lies between 250 and 260 helps answer "between which two tens is the number 253?" (source: National Council of Teachers of Mathematics).
Standard Rounding Rules -
The universally accepted rule is "0 - 4 round down, 5 - 9 round up." A handy mnemonic is "if it's five or more, let it soar; four or less, stay the same." Applying this to round 478 to the nearest hundred means looking at the tens digit (7), so you round up to 500 (source: Khan Academy).
Step-by-Step Rounding to Tens -
To round to tens, identify the ones digit and decide based on 0 - 4 or 5 - 9. For instance, 253 has a ones digit of 3, which is less than 5, so it rounds down to 250 (source: University mathematics standards).
Step-by-Step Rounding to Hundreds -
When rounding to hundreds, check the tens digit: if it's 5 or above, increase the hundreds place by one; if below, keep it. Rounding 478 gives 500 because the tens digit (7) triggers an upward adjustment (source: U.S. Department of Education).
Visualization with Number Lines -
Using a number line boosts accuracy in any rounding quiz by visually placing numbers between benchmarks like 200, 250, 300. This strategy makes rounding off numbers intuitive and builds confidence for timed drills (source: Journal of Educational Psychology).
