Natural Numbers & Integers Flashcards

1
Q

Whole positive numbers are called “. “ numbers? Not including 0

A

Natural numbers

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2
Q

A number that divides evenly into a second number is called a “. “ of the second number?

A

Multiple

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3
Q

A “. “ number has 2 factors only?

A

Prime Numbers

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4
Q

LCM stands for what?

A

Lowest Common Multiple

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5
Q

HCF stands for what?

A

Highest Common Factor

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6
Q

A number multiplied by itself to give a second number is called the “. “ of the second number?

A

A square of the second number

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7
Q

1,4,9,16&25 are called “. “ numbers

A

Square numbers

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8
Q

BIRDMAS stands for:

A

Brackets,Indices,(square) Roots,Division,Multiplication,Addition & Subtraction

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9
Q

If ( a-b)=(b-a) then the operation - is said to be ….

A

Commutative

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10
Q

If a-(b-c)=(a-b)-c then the operation - is said to to be…..

A

Associative

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11
Q

Brackets are used to “. “ an operation

A

Prioritise

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12
Q

When making a rough estimate of a calculation we generally “. “ whole numbers off to the nearest 10 or 100

A

Round

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13
Q

If we estimate 32657 as 33000 we are using the first two….

A

Significant figures

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14
Q

The set of negative and positive whole numbers including what is called the set of integers.

A

Zero (0)

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15
Q

When multiplying or dividing integers with like signs the answer is always…..

A

Positive

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16
Q

When multiplying or dividing integers with different signs the answer is always…

A

Negative

17
Q

Using an integer number line, numbers are to the left are…….. then the ones on the left

A

Less than

18
Q

If the temperature is -5C it is often described as 5C….

A

Below zero

19
Q

If a and b are numbers and a>b then a is …….. ……… b

A

Greater than

20
Q

If c and d are numbers and c>d then c is ……… ……. d

A

Greater than

21
Q

If e,f and g are integer numbers and e>f and f>g then g is ……… ……… e.

A

Less then