Math Quiz Week 3

1.

360÷ 9 =

Explanation
The given equation is a division problem, where 360 is divided by 9. When 360 is divided by 9, the quotient is 40.

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2.

6400÷ 8 =

Explanation
The given division problem is 6400 ÷ 8. When we divide 6400 by 8, we are essentially splitting 6400 into 8 equal parts. Each part will have a value of 800. Therefore, the answer is 800.

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3.

450÷ 9 =

Explanation
When dividing 450 by 9, we are looking for how many times 9 can go into 450. By performing the division, we find that 9 can go into 450 exactly 50 times, resulting in an answer of 50.

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4.

7200÷ 8 =

Explanation
When we divide 7200 by 8, we are essentially splitting 7200 into 8 equal parts. Each part would be 900, so the answer is 900.

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5.

42000÷ 6 =

Explanation
The given question is asking for the result of dividing 42000 by 6. The correct answer is 7000, which means that when you divide 42000 by 6, the quotient is 7000.

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6.

560÷ 7 =

Explanation
The given division problem is asking us to divide 560 by 7. When we divide 560 by 7, we get an answer of 80.

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7.

5400÷ 9 =

Explanation
The correct answer is 600 because when you divide 5400 by 9, you are essentially splitting 5400 into 9 equal groups. Each group would have 600 items, resulting in a total of 600.

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8.

6600÷11=

9.

Find a compatible number for underlined number: 649 divided by 8

10.

Find a compatible number for underlined number: 357 ÷ 9

11.

Find a compatible number for underlined number: 493 ÷ 10

12.

Find a compatible number for underlined number: 73734 ÷ 9

Explanation
The underlined number in the division problem is 9. To find a compatible number, we need to find a number that can be divided evenly by 9. The number 72000 is a compatible number because it can be divided evenly by 9.

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13.

27 X 83 =

Explanation
The product of multiplying 27 by 83 is 2241.

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14.

68 X 14 =

Explanation
To find the product of 68 and 14, we multiply the units place of 68 (8) with 14, which gives us 112. Then, we multiply the tens place of 68 (6) with 14, which gives us 84. Finally, we add the two products together, resulting in 112 + 84 = 196. Therefore, the correct answer is 952.

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15.

25 X 12 =

Explanation
The correct answer is 300 because when you multiply 25 by 12, you get the product of 300.

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16.

123 x 24 =

Explanation
The product of 123 and 24 is 1952.

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17.

Round to the nearest 10 45673

Explanation
The given number, 45673, is rounded to the nearest 10 by considering the digit in the ones place. Since the digit in the ones place is 3, which is less than 5, we round down to the nearest 10. Therefore, the rounded number is 45670.

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18.

Round to the nearest 100 5689

Explanation
To round a number to the nearest 100, we look at the digit in the tens place. If it is 5 or greater, we round up by adding 100 to the number. In this case, the digit in the tens place is 8, which is greater than 5. Therefore, we round up and add 100 to the number, resulting in 5700.

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19.

Round to the nearest 1000 3405

20.

What is one way to estimate quotients?

A.

add
B.

find a compatible number
C.

Subtract

Correct Answer
B. find a compatible number

Explanation
One way to estimate quotients is by finding a compatible number. This means choosing a number that is close to the dividend and is easy to divide by the divisor. By using a compatible number, the division becomes easier and the quotient can be estimated more accurately.

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