Vocab
terminating decimal definition
a decimal that stops, it has an end
Opposite number definition
opp of pos is neg
opp of neg is pos
-56 + -179 =
-235
- 12 x -15 =
180
integer definition
a positive or negative whole number or zero
What do absolute value brackets look like?
l l
32 - 217 =
-185
-27 x 43 =
-1,161
how many spaces from zero a number is, and it is always positive
repeating decimal definition and symbol
a decimal that has a digit or pattern of digits that repeats forever ; repeat bar
-21.54 + 48.96
27.42
3.25 x -16.8 =
-54.6
How do you change a decimal to a fraction?
Divide the top by the bottom.
What combines to equal zero?
opposite numbers
63.29 + 5.9 =
69.19
-8,094 ÷ 19 =
-426
When multiplying/dividing...
same signs =
different signs =
positive answer
negative answer
What is this called and what happens?
-(-)
Double negative and it becomes a positive
-21.5 + 58.32 + 78.1=
114.92
-0.8094 ÷ -0.19 =
4.26
When adding/subtracting...
same signs = AND
different signs = AND
add AND keep the sign
subtract AND keep sign of the larger number
How do you change a mixed number to an improper fraction and an improper fraction to a mixed number?
multiply the denominator and whole number and add the numerator, keep the denominator the same
divide the top by the bottom
89 - 12.75 + 45.3 - 198 =
-76.45
4/5 ÷ 3 1/3 =
6/25