Math

Question 1

absolute value

Answer 1

of units/distance a number is from 0 on number line

absolute value symbol: | |

|-3|= 3

Question 2

adding integers w/ the same sign

Answer 2

add numbers together & keep the sign

7 + 4 = 11 -2+-3= -5

Question 3

adding integers w/ different signs

Answer 3

subtract numbers & keep the sign of the larger number

-7 + 2 = -5

Question 4

changing subtraction to addition

-8-(-7)

Answer 4

change subtraction sign outside parentheses to positive change sign of # inside parentheses to its opposite

-8-(-7) = -8+(7) = -1

Question 5

subtracting integers

3 - (-10)

Answer 5

change subtraction sign to plus 3 + (-10)

change sign of # following subtraction sign to opposite 3+10

Question 6

rounding

Answer 6

4 - = down

5+ = up

Question 7

When multiplying integers w/ the same sign, answer will be + or - ?

Answer 7

positive

9 x 12 = 108

-7 x -5 = 35

Question 8

When multiplying integers w/ different signs, answer will be + or - ?

Answer 8

negative

-8 (9) = -72

Question 9

When dividing integers w/ different signs, answer will be + or - ?

Answer 9

negative

-63 / 9 = -7

Question 10

When dividing integers w/ the same sign, answer will be + or - ?

Answer 10

positive

-7 ÷ -5 = 35

24 ÷ 12 = 2

Question 11

PEMDAS

Answer 11

Please Excuse My Dear Aunt Sally

Parentheses Exponents Multiplication

Division Addition Subtraction ( left to right)

Question 12

perimeter

Answer 12

outside measurement of flat surfaces

add sides together

Question 13

Find the perimeter of a square postage stamp if one side is 22mm.

Answer 13

P = 4s

P = 4(22)

P = 88 mm

Question 14

How can you find the perimeter of a square?

Answer 14

side + side + side + side

P = 4 side

P = 4s

Question 15

How can you find the perimeter of a rectangle?

Answer 15

length + length + width + width

P = 2(length) + 2(width)

P = 2L + 2W

Question 16

Find the perimeter of a rectangle with length of 18 in. and width of 7 in.

Answer 16

P = 2L + 2W

P= 2(18) + 2(7)

P= 36 + 14

P= 50in

Question 17

the amount of surface inside a flat shape is

Answer 17

area

Question 18

How can you find the area of a rectangle?

Answer 18

length x width

A= lw

Question 19

How can you find the area of a square?

Answer 19

side x side

A= s²

Question 20

How can you find the area of a parallelogram?

(no right angles or unequal sides)

Answer 20

base x height

A= bh

Question 21

Find the area of a rectangle with a length of 12 feet and a width of 11 feet.

Answer 21

A= lw

A= 12(11)

A= 132ft

Question 22

To create an equivalent fraction, multiply the numerator and denominator by:

Answer 22

the same number

Question 23

When comparing fractions w/ different denominators…

Answer 23

convert equivalent fractions w/ a common denominator

Question 24

When comparing negative numbers higher negative numbers are more/less valuable than lower negative numbers?

Answer 24

less

Question 25

To convert a percentage to a decimal, divide the # by:

Answer 25

100

Question 26

To find the percentage of a number 40% of $300

Answer 26

change to a decimal 40% = .40 multiply by the number in question .40 x 300 =120

Question 27

mean

Answer 27

add all #s & divide by the number of #s 2+2+4=8 8/3=2.6

Question 28

median

Answer 28

the middle value (rewrite numbers in order)

Question 29

mode

Answer 29

number repeated most often

Question 30

range

Answer 30

largest value - smallest value

Question 31

minimum

Answer 31

lowest number

Question 32

maximum

Answer 32

highest value