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Explanation When rounding a number to the nearest 10, we look at the digit in the ones place. If it is 5 or greater, we round up by adding 1 to the tens place. In this case, the digit in the ones place is 6, which is greater than 5. Therefore, we round up to the next ten, which is 60.
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2.
809 rounded to the nearest 100 would be ?
A.
810
B.
800
C.
900
Correct Answer B. 800
Explanation 809 rounded to the nearest 100 would be 800 because when rounding to the nearest 100, we look at the tens digit. If the tens digit is 5 or more, we round up to the next hundred. In this case, the tens digit is 0, which is less than 5, so we round down to the previous hundred, which is 800.
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3.
416 rounded to the nearest 100 would be ?
A.
500
B.
420
C.
400
Correct Answer C. 400
Explanation When rounding 416 to the nearest 100, we look at the digit in the tens place, which is 1. Since 1 is less than 5, we round down. Therefore, 416 rounded to the nearest 100 is 400.
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4.
8 462 rounded to the nearest 1 000 would be ?
A.
8,000
B.
8,500
C.
9,000
Correct Answer A. 8,000
Explanation When rounding 8,462 to the nearest 1,000, we look at the hundreds digit, which is 4. Since it is less than 5, we round down. Therefore, the answer is 8,000.
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5.
5 673 rounded to the nearest 1 000 would be ?
A.
6,000
B.
5,600
C.
5,000
Correct Answer A. 6,000
Explanation When rounding 5,673 to the nearest 1,000, we look at the digit in the thousands place, which is 5. Since this digit is greater than or equal to 5, we round up. Therefore, the nearest 1,000 to 5,673 is 6,000.
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6.
A chicken farmer collected 412 eggs in March and 596 in April. How many more eggs were collected in April? Round your numbers to the nearest 10.
A.
80 eggs
B.
180 eggs
C.
380 eggs
D.
980 eggs
Correct Answer B. 180 eggs
Explanation In March, the chicken farmer collected 412 eggs. In April, the farmer collected 596 eggs. To find out how many more eggs were collected in April, we subtract the number of eggs collected in March from the number of eggs collected in April. 596 - 412 = 184. However, we need to round the numbers to the nearest 10, so the answer is 180 eggs.
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7.
27 rounded to the nearest 10 would be ?
A.
20
B.
25
C.
30
Correct Answer C. 30
Explanation When rounding a number to the nearest 10, we look at the digit in the ones place. If it is 5 or greater, we round up to the next multiple of 10. In this case, the digit in the ones place is 7, which is greater than 5. So, we round up to the next multiple of 10, which is 30.
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8.
456 rounded to the nearest 100 would be ?
A.
400
B.
500
C.
460
Correct Answer B. 500
Explanation When rounding 456 to the nearest 100, we look at the digit in the tens place, which is 5. Since 5 is greater than or equal to 5, we round up the hundreds digit to the next whole number, which is 5. Therefore, 456 rounded to the nearest 100 would be 500.
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9.
A lorry driver makes journeys of 78 miles, 215 miles, 409 miles and 108 miles. What is the total distance travelled? Round to the nearest tens. Round to the nearest 10.
A.
710 miles
B.
610 miles
C.
810 miles
D.
1,010 miles
Correct Answer C. 810 miles
Explanation To find the total distance traveled, you simply add up the individual distances:
78 miles + 215 miles + 409 miles + 108 miles = 810 miles
So, the total distance traveled is 810 miles when rounded to the nearest ten. Therefore, the correct answer is:
810 miles
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10.
Lindsey wants to estimate how many comic books she and her friends have. She has 2,169, Les has 6,131 and Neil has 2,702. Round to the nearest tens. They have a total of _____________ comic books.
Correct Answer 11,000 11000 11 000
Explanation Lindsey has 2,169 comic books, Les has 6,131 comic books, and Neil has 2,702 comic books. To estimate the total number of comic books, we need to round each individual number to the nearest tens. Rounding 2,169 to the nearest tens gives us 2,170, rounding 6,131 gives us 6,130, and rounding 2,702 gives us 2,700. Adding these rounded numbers together, we get a total of 2,170 + 6,130 + 2,700 = 11,000 comic books.
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11.
Ron and Amanda collected 497 buttons, but they used 177 of them while fixing some jackets. About how many buttons do they have now? Round to the nearest tens. They have _________ buttons left.
Correct Answer 320
Explanation Ron and Amanda initially had 497 buttons. They used 177 of them, so they subtracted 177 from 497. This leaves them with 320 buttons. Since we need to round to the nearest tens, the answer is 320.
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12.
796 + 276
Correct Answer 1072 1,072 1 072
Explanation The given question is asking for the sum of 796 and 276. The correct answer is 1072, which can also be represented as 1,072 or 1 072.
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13.
87 - 19 =
Correct Answer 68
Explanation The given expression is a subtraction problem where we subtract 19 from 87. When we subtract 19 from 87, we get the result as 68.
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14.
634 - 541 =
Correct Answer 93
Explanation The given question requires subtracting 541 from 634. When subtracting, we start from the rightmost digit and subtract each corresponding digit. In this case, 4 minus 1 equals 3, 3 minus 4 is -1, and 6 minus 5 is 1. Since we have a negative result in the middle, we can borrow 1 from the leftmost digit, resulting in 5 minus 4 equals 1. Therefore, the correct answer is 93.
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15.
81 x 8 =
Correct Answer 648
Explanation The given question is a multiplication problem, asking to find the product of 81 and 8. To solve this, we multiply the two numbers together. 81 multiplied by 8 equals 648.
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16.
63 x 23 =
Correct Answer 1,449 1449 1 449
Explanation The correct answer is 1,449. The multiplication of 63 and 23 equals 1,449.
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17.
96 / 4 =
Correct Answer 24
Explanation The given question is a division problem, where 96 is divided by 4. When we divide 96 by 4, we get a quotient of 24. This means that if we distribute 96 items equally into 4 groups, each group will have 24 items. Therefore, the correct answer is 24.
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18.
675 / 5 =
Correct Answer 135
Explanation The given equation is 675 divided by 5. When we divide 675 by 5, we get the quotient as 135. This means that if we distribute 675 equally into 5 groups, each group will have 135. Therefore, the correct answer is 135.
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19.
92 + 72 =
Correct Answer 164
Explanation The given equation is 92 + 72. When we add 92 and 72, we get the sum of 164.
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20.
Did you like taking your quiz online?
Correct Answer Yes No yes no
Explanation The given correct answer for this question is "Yes, No, yes, no". This suggests that the person had mixed feelings about taking the quiz online. They may have liked some aspects of it, hence the "yes" responses, but also disliked other aspects, hence the "no" responses. This indicates that their opinion was not entirely positive or negative, but rather a combination of both.
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