Module 1: Basic numeracy and calculation skills Flashcards

1
Q

Composite number

A

A number with more factors than just one and itself

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2
Q

data

A

a set of qualitative or quantitative variables; pieces of data are individual pieces of information

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3
Q

square root

A

a number that produces a specified number when it is multiplied by itself

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4
Q

commutative

A

The property that the order of the numbers under the operation does not change the result. Addition and multiplication are commutative; a + b=b + a

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5
Q

expressions

A

a string of terms that are connected by division, addition, and subtraction operations

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6
Q

sum

A

The result of multiple numbers being added together.

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7
Q

positive number

A

A number whose value is greater than zero. On the number line, positive numbers are to the right of zero.

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8
Q

associative property

A

The associative property holds that under certain operations in a multi-step expression, the computations may be done in any order. Commonly represented as (a + b) + c = a + (b + c). Addition and multiplication are associative.

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9
Q

superscript

A

A symbol (such as a number or letter) written above and immediately to the left or right of another character.

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10
Q

factor

A

An integer that divides another integer. We say an integer, x, is a factor of another integer, y, if the quotient y/x is also equal to an integer.

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11
Q

interval

A

A set of numbers between two specified values.

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12
Q

negative number

A

A number whose value is less than zero. On the number line, negative numbers are to the left of zero.

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13
Q

multiplicative inverse

A

The multiplicative inverse of a number x is the number you must multiply x by to get 1. For example, 5 and 1/5 are multiplicative inverses.

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14
Q

parentheses

A

In mathematics, parentheses () are used to separate operations within an expression. Any operations that lie within parentheses should be performed first.

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15
Q

negative square root

A

The negative square root of a perfect square. For example, -6 is the negative square root of 36.

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16
Q

principal square root

A

The positive square root of a number. For example, the principal square root of 36 is 6.

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17
Q

multiplication

A

In mathematics, multiplication is the act of adding the same number multiple times. Multiplication is often denoted by the dot sign, ·.

18
Q

additive inverse

A

Two numbers equidistant from 0 on a number line whose sum is 0. For example, 3 and -3 are additive inverses.

19
Q

base number

A

The number multiplied by itself when paired with an exponent. For example, in 8 to the third power, 8 would be the base number.

20
Q

identity property

A

The property that 0 can be added to any number without changing the value of the number. Likewise, 1 can be multiplied by any number without changing the value of that number.

21
Q

discrete

A

A collection of numbers whose values are distinct, separate, and unconnected.

22
Q

product

A

The result of multiplying values.

23
Q

multi-step expression

A

An expression or equation with more than two values and two or more operators that requires multiple steps to be solved.

24
Q

continuous

A

A collection of numbers whose values are not dividable into distinct units.

25
Q

operation

A

In mathematics, an operation is a procedure which generates a new value from one or more operands, or mathematical values.

26
Q

set

A

In mathematics: a collection of numbers.

27
Q

prime number

A

A number with only two factors: one and itself.

28
Q

Fundamental Theorem of Arithmetic

A

A concept which states that any integer greater than 1 is either prime or is the product of a unique set of prime numbers.

29
Q

greatest common factor (GCF)

A

The greatest common factor of any two integers a and b is the greatest number that is both a factor of a and a factor of b.

30
Q

real number

A

Any numbers on the number line. Real numbers include zero, negative and positive integers, fractions, and decimals.

31
Q

whole number

A

A number whose value is 0 or greater (negative numbers are not considered whole numbers) and can be represented without a fractional or a decimal component.

32
Q

factor tree

A

A graphical method used to identify the prime factorization of an integer.

33
Q

radical sign

A

The symbol which indicates to take the square root of the number that follows.

34
Q

exponents

A

Sometimes called a power, it is a quantity that represents repeated multiplication.

35
Q

integer

A

A number, (positive, negative, or zero), that can be represented without a fractional or a decimal component.

36
Q

perfect square

A

The product of any integer with itself yields a perfect square. So, a number is a perfect square if it can be written as the square of an integer. For example, 9 is a perfect square because 3 * 3 = 9.

37
Q

prime factorization

A

Determining the set of prime numbers whose product is the original integer.

38
Q

rational number

A

A rational number is a number that can be written as a ratio of integers, which means it can be written as a fraction.

39
Q

factorization

A

The process of determining the prime factors of a composite number.

40
Q

order of operations

A

A set of rules that defines the order in which mathematical operations should be performed
PEMDAS

41
Q

A set of rules that defines the order in which mathematical operations should be performed

A

The number within the radical sign whose square root is to be taken.