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问答题

Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

3.76×105=______

答案： To solve this problem, you must simply move the decimal poin...
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问答题

Squares and Square Roots
These questions will test your knowledge of operations using square roots.
Solve the following problems.

72= ______
答案：

72 simply means 7 times 7, which is 49.
问答题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
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These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.

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Solve the following problems.

2 raised to the power of ______=8
答案： The power that a number is raised to is equivalent to the nu...
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Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

423,700,000=4.237×10 to the power of ______
答案： When dealing with scientific notation, the power that 10 is ...
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Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
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A certain integer n is a multiple of both 5 and 9. Must n be a multiple of 15
答案： The first step in solving this problem is to find the Least ...
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Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

Ann scored 88, 93, 84, and 99 on 4 tests. What is her mean test score
答案： The mean is the average, so simply add the test scores and d...
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Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

______ is 30% of 20.
答案： To solve this problem, set up a proportion. You are looking ...
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Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
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If x=-8, what is the value of |x-6|
答案： First, substitute -8 for x and do the subtraction within the...
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Squares and Square Roots
These questions will test your knowledge of operations using square roots.
Solve the following problems.

33=______
答案： 33, or 3 to the third power, means you must multi...
问答题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
Basic Operations
These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.

7 ______ 2=3.5
答案： To reach an answer of 3.5, you must divide 7 by 2. Insert th...
问答题

Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

3.76×105=______
答案： To solve this problem, you must simply move the decimal poin...
问答题

Squares and Square Roots
These questions will test your knowledge of operations using square roots.
Solve the following problems.
答案： Find the square roots before you do the division. The square...
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Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

What is the value of x
答案： You are given a proportion to solve. To find the answer, cro...
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Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

What are the common factors of 7 and 42
答案： Remember that common factors are all of the factors that two...
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Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

If you roll a single 6-sided die, what is the probability that you will roll an odd number
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Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

What is the mode of the data given below
7,3,6,7,5,8,9,7
答案： The mode is the number that appears most frequently in a ser...
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Squares and Square Roots
These questions will test your knowledge of operations using square roots.
Solve the following problems.

Express 3×3 as a square: ______
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Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

(2.50×104)÷(1.25×103)= ______
答案： This problem can be set up as When dividing like bases, you ...
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Ratio, Proportion, and Percent
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Answer the following questions.

Solve |4x-6|=10 for x.
答案： To solve this problem, set up two equations because x has tw...
问答题

Squares and Square Roots
These questions will test your knowledge of operations using square roots.
Solve the following problems.

22×23=______
答案： Remember to add the exponents when multiplying exponential v...
问答题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
Basic Operations
These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.
答案： One way to solve this problem is to look for the Lowest Comm...
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Ratio, Proportion, and Percent
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As an analyst for the Department of Natural Resources, you analyze samples of river water. A 2-liter sample of water contained about 24 of a particular organism and a 4-liter sample of water contained about 48 such organisms. At this rate, how many of the organisms would you expect to find in a 10-liter sample of water from the same river
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Ratio, Proportion, and Percent
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Answer the following questions.

What is the Greatest Common Factor of 48 and 72
答案： The Greatest Common Factor (GCF) is the largest number that ...
问答题

Mean, Median, and Mode
These questions will test your knowledge of operations involving mean, median, and mode.
Fill in the blanks below with the correct number. What is the median of the data given below
8, 13, 9, 8, 15, 14, 10
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Ratio, Proportion, and Percent
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A company knows that 2.5% of the CD players it makes are defective. If the company produces 300,000 CD players, how many will be defective
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问答题

Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

6.47×10-5=______
答案： You are given a negative value for the power to which 10 is ...
问答题

Squares and Square Roots
These questions will test your knowledge of operations using square roots.
Solve the following problems.

72-32=
答案： Both numbers are raised to the power of 2 (they are squared)...
问答题

Squares and Square Roots
These questions will test your knowledge of operations using square roots.
Solve the following problems.

125=5______
答案：

53=5×5×5, which gives you 125.
填空题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
Basic Operations
These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.

When 5 consecutive odd integers, each greater than 34 are added, what is the smallest possible sum
答案： 195
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Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
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|-15|×|6|=______
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Ratio, Proportion, and Percent
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If 20% of x equals 16, then x=______
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Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

Jordan had 3 hits in his first 4 baseball games and 4 hits in his next 4 games. What is the average number of hits Jordan had in all of his games
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Ratio, Proportion, and Percent
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What is the Least Common Multiple of 30 and 40
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Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

When flipping a coin, what is the probability that it will land on tails four times in a row
答案： When flipping a coin, there are only two possible outcomes: ...
问答题

Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

(24)2=______
答案： When raising an exponent to another power, multiply the expo...
问答题

Squares and Square Roots
These questions will test your knowledge of operations using square roots.
Solve the following problems.
答案： This problem requires you to find a square root of a number ...
问答题

Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

9.832×104=______
答案： Because 10 is raised to the fourth power, move the decimal p...
问答题

Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

Solve |6x+8|=|3x-7| for x.
答案： To find the possible answers for x in this problem, set up t...
问答题

Exponents
These questions will test your knowledge of operations using exponents.
Fill in the blanks below with the correct number.

What is the median of the data given below
80, 19, 82, 15, 72, 3
答案： The median is the middle value in an ordered set of values. ...
问答题

Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

Jim scored 95 points in 5 basketball games for his school. At this rate, how many points will he have scored by the end of the 12-game season
答案： Use a proportion to solve this problem. You know that Jim sc...
问答题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
Basic Operations
These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.

What is the Lowest Common Denominator of
答案： The Lowest Common Denominator (LCD) is the smallest number i...
问答题

Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

What is the greatest positive integer x such that 2x is a factor of 1210
答案： To reach an answer, you first must find the smallest factors...
问答题

Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

If the probability that Dave will go to class is 0.7, what is the probability that he will not go to class
答案： The probability that Dave will go to class is 0.7, or 70%. T...
问答题

Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.
答案： First find the absolute value of the denominator. The absolu...
问答题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
Basic Operations
These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.
答案： You must first complete the math within the parentheses (96-...
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Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

A bowl contains 20 marbles (8 blue, 6 red, 3 green, 2 yellow, and 1 orange). If you reach in and choose one marble at random, what is the probability that it will be red
答案： There is a total of 20 marbles in the bowl, 6 of which are r...
问答题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
Basic Operations
These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.

3(27+2-3)= ______
答案： You must first do the operations within the parentheses (27+...
问答题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
Basic Operations
These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.
答案： You must first find the Lowest Common Denominator (LCD) for ...
问答题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
Basic Operations
These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.

231.2-198.7= ______
答案： This is a simple subtraction problem. To solve this without ...
问答题

These exercises are designed to help you apply the mathematics concepts just covered. They are not in GRE format, but should help you to identify your areas of strength and weakness.
Basic Operations
These questions will test your knowledge of operations using integers, real numbers, fractions, and decimals.
Insert the correct operator in the blanks below.
答案： First convertto its decimal equivalent, which is 0.2. Then m...
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