praxis 7813 Exam with Correct Answers
1. numbers the basic building blocks of mathematics.
2. integer any positive or negative whole number, including zero. do not include fractions,
decimals, or mixed numbers
3. prime number any whole number greater than 1 that has only two factors- itself and 1; a number
that can be divided evenly only by 1 and itself
4. composite num- any whole number greater than 1 that has more than two ditterent factors. any
ber whole number that is not a prime number
5. even number any integer that can be divided by two without leaving a remainer
6. odd number any integer that cannot be divided evenly by 2
7. decimal number any number that uses as decimal point to show the part of the number that is less
than one
8. decimal point a symbol used to separate the ones places from the tenths place in decimals or
dollars from cents in currency
9. decimal place the position of a number to the right of the decimal point. In the decimal .123,
the 1 is in the first place to the right indicating tenths, 2 is in the second place
indicating hundredths, and the 3 is in the third place indicating thousandths
10. Decimal or Base a number system that uses ten ditterent digits (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
10
11. rational numbers all integers, decimals, and fractions. any terminating or repeating decimal num-
ber. can be expressed as a ratio or a fraction where both numbers are integers
and the lower number does not equal 0.
, praxis 7813 Exam with Correct Answers
12. irrational num- cannot be written as fractions or decimals because the number of decimal places
bers is infinite and there is no recurring pattern of digits within the number. for
example, pi.
13. real numbers the set of all rational and irrational numbers
14. number line a graph to see the distance between numbers. shows the relationship between
numbers. May have a point for zero, with negative numbers on the left and
positive on the right.
15. place value The value of a digit based on its position within a number
16. power of 10 A number like 10, 100, 1,000 and so on. It is the result of using only 10 as a factor.
17. absolute value The distance a number is from zero on a number line. ALWAYS POSITIVE. (ex: the
absolute value of 3 is 3. the absolute value of -3 is also 3.)
, praxis 7813 Exam with Correct Answers
18. operation mathematical process that takes some values as inputs and produces an output.
19. addition increases the value of one quantity by the value of another quantity (addends).
the order of numbers does not matter.
20. addends The numbers that add together to make a sum in addition
21. sum the answer to an addition problem
22. Adding signed if the signs are the same, add the absolute values of the addends and then apply
numbers the original sign. if the signs are ditterent, take the values of the addends and
subtract the smaller value from the larger value then apply the original sign of the
larger value to the ditterence.
23. subtraction the opposite operation to addition; it decreases the value of one quantity (the
minuend) by the value of another quantity (the subtrahend). The order of num-
bers DOES matter.
24. minuend A number from which another number is subtracted.
25. subtrahend the number being subtracted
1. numbers the basic building blocks of mathematics.
2. integer any positive or negative whole number, including zero. do not include fractions,
decimals, or mixed numbers
3. prime number any whole number greater than 1 that has only two factors- itself and 1; a number
that can be divided evenly only by 1 and itself
4. composite num- any whole number greater than 1 that has more than two ditterent factors. any
ber whole number that is not a prime number
5. even number any integer that can be divided by two without leaving a remainer
6. odd number any integer that cannot be divided evenly by 2
7. decimal number any number that uses as decimal point to show the part of the number that is less
than one
8. decimal point a symbol used to separate the ones places from the tenths place in decimals or
dollars from cents in currency
9. decimal place the position of a number to the right of the decimal point. In the decimal .123,
the 1 is in the first place to the right indicating tenths, 2 is in the second place
indicating hundredths, and the 3 is in the third place indicating thousandths
10. Decimal or Base a number system that uses ten ditterent digits (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
10
11. rational numbers all integers, decimals, and fractions. any terminating or repeating decimal num-
ber. can be expressed as a ratio or a fraction where both numbers are integers
and the lower number does not equal 0.
, praxis 7813 Exam with Correct Answers
12. irrational num- cannot be written as fractions or decimals because the number of decimal places
bers is infinite and there is no recurring pattern of digits within the number. for
example, pi.
13. real numbers the set of all rational and irrational numbers
14. number line a graph to see the distance between numbers. shows the relationship between
numbers. May have a point for zero, with negative numbers on the left and
positive on the right.
15. place value The value of a digit based on its position within a number
16. power of 10 A number like 10, 100, 1,000 and so on. It is the result of using only 10 as a factor.
17. absolute value The distance a number is from zero on a number line. ALWAYS POSITIVE. (ex: the
absolute value of 3 is 3. the absolute value of -3 is also 3.)
, praxis 7813 Exam with Correct Answers
18. operation mathematical process that takes some values as inputs and produces an output.
19. addition increases the value of one quantity by the value of another quantity (addends).
the order of numbers does not matter.
20. addends The numbers that add together to make a sum in addition
21. sum the answer to an addition problem
22. Adding signed if the signs are the same, add the absolute values of the addends and then apply
numbers the original sign. if the signs are ditterent, take the values of the addends and
subtract the smaller value from the larger value then apply the original sign of the
larger value to the ditterence.
23. subtraction the opposite operation to addition; it decreases the value of one quantity (the
minuend) by the value of another quantity (the subtrahend). The order of num-
bers DOES matter.
24. minuend A number from which another number is subtracted.
25. subtrahend the number being subtracted
