Rounding Numbers Practice

To round 6418 to the nearest thousand, look at the hundreds digit (which is 4). Since 4 is less than 5, we round down. Therefore, 6418 rounded to the nearest thousand is 6000, not 7000. The rule is: if the hundreds digit is 0-4, round down; if it's 5-9, round up.

When a number rounds to 48000 to the nearest thousand, it must be in the range 47500 to 48499 (inclusive). The maximum value would be the highest number that still rounds down to 48000, which is 48499. At 48500, we would round up to 49000 instead.

When a number rounds to 48000 to the nearest thousand, it must be in the range 47500 to 48499 (inclusive). The minimum value would be 47500, since at 47499 we would round down to 47000 instead. The halfway point (47500) always rounds up in standard rounding rules.

To round 9821 to the nearest thousand, look at the hundreds digit (which is 8). Since 8 is greater than or equal to 5, we round up. Therefore, 9821 rounded to the nearest thousand is 10000, not 9000. The rule is: if the hundreds digit is 5-9, round up; if it's 0-4, round down.

To round 9821 to the nearest ten, look at the ones digit (which is 1). Since 1 < 5, we round down and keep the tens digit as-is, giving 9820. Option A (9800) would be rounding to the nearest hundred, not ten.

To round 83% to the nearest ten, look at the ones digit (which is 3). Since 3 < 5, we round down to 80%. Option B (85%) would be rounding to the nearest five, not ten.

To round 85682 to the nearest ten thousand, we look at the thousands digit (which is 5). Since 5 >= 5, we round up from 80000 to 90000. The key is identifying which place value we're rounding to.

To round 85682 to the nearest thousand, look at the hundreds digit (which is 6). Since 6 >= 5, we round up from 85000 to 86000. Students often mistakenly look at the wrong place value.

To round 85682 to the nearest ten, look at the ones digit (which is 2). Since 2 < 5, we round down and keep the tens digit, giving 85680. Option C (85690) would be rounding up, which is incorrect here.

To round 85682 to the nearest hundred, look at the tens digit (which is 8). Since 8 >= 5, we round up from 85600 to 85700. The tens place determines whether we go up or stay at the current hundred.

To round 3.8 feet to the nearest whole number, look at the tenths digit (which is 8). Since 8 >= 5, we round up from 3 to 4 feet. This applies the same rounding logic to decimal numbers.

To round 9821 to the nearest hundred, look at the tens digit (which is 2). Since 2 < 5, we round down to 9800. Option D (9900) would require the tens digit to be 5 or greater.

To round £55 to the nearest ten, the ones digit is exactly 5. By convention, when the digit is exactly 5, we round UP to the next ten, giving £60. This is a standard rounding rule.

To round £34283 to the nearest thousand, look at the hundreds digit (which is 2). Since 2 < 5, we round down to £34000. The hundreds place is the deciding digit, not the tens or ones.

To round 32472 to the nearest hundred, look at the tens digit (which is 7). Since 7 >= 5, we round up from 32400 to 32500. The tens place determines whether we move to the next hundred.

If the rounded number is 10400 (nearest hundred), the minimum original number is 10350. This is because any number from 10350 to 10449 rounds to 10400. The lower bound (10350) is exactly halfway, which rounds up. 10300 would round to 10300, and 10250 would round to 10200.

When rounding to the nearest hundred, any number from 10350 to 10449 will round to 10400. The maximum value in this range is 10449, as 10450 would round up to 10500. Choice A is a common trap - it's exactly at the rounding boundary.

When rounding 42179 to the nearest thousand, look at the hundreds digit (1). Since 1 is less than 5, we round down to 42000. Choice A incorrectly rounds to the nearest ten, while choice C rounds too far.

Numbers from 5550 to 5649 round to 5600 when rounding to the nearest hundred. Option A (5090) is nearly 500 away from this range and would round to 5100, not 5600. Options B, C, and D all fall within the valid range.

When rounding to the nearest ten, numbers from 25 to 34 round to 30. The maximum is 34, as 35 would round up to 40. Choice B is exactly at the midpoint and would round up, making it incorrect.

When rounding 164 cm to the nearest ten, look at the units digit (4). Since 4 is less than 5, we round down to 160 cm. Choice C is the original number, not rounded, while choice A rounds incorrectly.

Total students = 157 + 146 = 303. Total fees = 303 × £60 = £18,180. When rounding to the nearest thousand, 18,180 rounds to 18,000 since the hundreds digit (1) is less than 5.

When rounding to the nearest ten, numbers from 25 to 34 round to 30. Options A, B, and C (28, 27, 26) all fall in this range. Option D (24) rounds to 20, not 30, making it the correct answer for what could NOT be the pocket money.

Savings = £5416 - £3024 = £2392. When rounding to the nearest hundred, 2392 rounds to 2400 because the tens digit (9) is 5 or greater, so we round up.

Total students = 157 + 146 = 303. Total fees = 303 × £60 = £18,180. When rounding to the nearest ten thousand, 18,180 rounds to 20,000 because the thousands digit (8) is 5 or greater, so we round up to the next ten thousand.