1.
What is 18,561 divided by 3?
Correct Answer
B. 6,187
Explanation
To find the answer to the division problem, we need to divide 18,561 by 3. When we divide 18,561 by 3, we get 6,187 as the quotient. Therefore, the correct answer is 6,187.
2.
How do you write "523 million, 209 thousand, 724" in standard form?
Correct Answer
D. 523,209,724
Explanation
The given number "523 million, 209 thousand, 724" can be written in standard form as 523,209,724.
3.
What is 6 x 200x 30?
Correct Answer
B. 36,000
Explanation
The given expression is a multiplication problem. To solve it, we multiply the three numbers together: 6 x 200 x 30. First, we multiply 6 by 200, which equals 1,200. Then, we multiply 1,200 by 30, which equals 36,000. Therefore, the correct answer is 36,000.
4.
How would you write six hundred eighty-four thousand, sixty-seven?
Correct Answer
C. 684,067
Explanation
The correct answer is 684,067 because it accurately represents the written form "six hundred eighty-four thousand, sixty-seven." The number is broken down into its respective place values: 600,000 (six hundred thousand), 80,000 (eighty thousand), 4,000 (four thousand), 60 (sixty), and 7 (seven). When combined, it forms 684,067.
5.
How much change should you get back if you pay for a $9.89 item with a $20 bill?
Correct Answer
C. 10.11
Explanation
If you pay for a $9.89 item with a $20 bill, you should get back $10.11 in change. This can be calculated by subtracting the cost of the item from the amount paid, which gives $10.11.
6.
What is 33.6 x 0.8?
Correct Answer
C. 26.88
Explanation
The correct answer is 26.88. To find the product of 33.6 and 0.8, we multiply the two numbers together. When we multiply 33.6 by 0.8, we move the decimal point one place to the left in 33.6 to get 3.36, and then multiply by 8 to get 26.88. Therefore, the answer is 26.88.
7.
What is the average of 106, 109, 98 and 111?
Correct Answer
C. 106
Explanation
The average of a set of numbers is found by adding all the numbers together and then dividing the sum by the total number of numbers. In this case, the sum of 106, 109, 98, and 111 is 424. Dividing 424 by 4 (the total number of numbers) gives us an average of 106.
8.
What number divided by 18 is equal to 2/3?
Correct Answer
A. 12
Explanation
To find the number that divided by 18 is equal to 2/3, we can set up the equation: x/18 = 2/3. To solve for x, we can cross multiply: 3x = 36. Dividing both sides by 3 gives us x = 12. Therefore, 12 divided by 18 is equal to 2/3.
9.
What is 0.186 rounded to the nearest tenth?
Correct Answer
C. 0.2
Explanation
0.186 rounded to the nearest tenth is 0.2. When rounding to the nearest tenth, we look at the digit in the hundredth place, which is 8 in this case. Since 8 is greater than or equal to 5, we round up the digit in the tenth place, which is 1, to the next higher number, which is 2. Therefore, the rounded number is 0.2.
10.
What is the simplest form of the fraction 9/45?
Correct Answer
C. 5-Jan
Explanation
The simplest form of a fraction is when the numerator and denominator have no common factors other than 1. In this case, both 9 and 45 can be divided by 9, resulting in the fraction 1/5. Therefore, the simplest form of 9/45 is 1/5.
11.
What is $7.48 rounded to the nearest dollar?
Correct Answer
C. 7
Explanation
When rounding a number to the nearest dollar, we look at the decimal place immediately to the right of the dollar amount. In this case, the decimal place is 4. Since 4 is less than 5, we round down to the nearest dollar. Therefore, $7.48 rounded to the nearest dollar is $7.
12.
What is 50,438 - 18,380?
Correct Answer
B. 32,058
Explanation
The correct answer is 32,058. To find the difference between 50,438 and 18,380, subtract the smaller number (18,380) from the larger number (50,438). This gives us 32,058.
13.
What is the best estimate for 4.8 + 7.46?
Correct Answer
A. 12.3
Explanation
The best estimate for 4.8 + 7.46 is 12.3 because when we round 4.8 to the nearest whole number, it becomes 5. Adding 5 to 7.46 gives us 12.46. Rounding 12.46 to the nearest tenth, we get 12.3.
14.
Which is largest?
Correct Answer
C. 198,968
Explanation
198,968 is the largest number among the given options because it has the highest value in the thousands place, which is 9. In comparison, the other numbers have a 1 or 8 in the thousands place. The numbers in the hundreds, tens, and ones places do not affect the comparison since the thousands place has the highest weightage.
15.
Which denominator is needed to make (3/x) equal to 9/12?
Correct Answer
D. 4
Explanation
To make (3/x) equal to 9/12, we need to find the value of x. We can do this by setting up a proportion. Cross-multiplying, we get 3 * 12 = 9 * x, which simplifies to 36 = 9x. Dividing both sides by 9, we find that x = 4. Therefore, the denominator needed to make (3/x) equal to 9/12 is 4.