Math things

Adding, subtracting, dividing, multiplying negative numbers; Mean, median, mode, and range

How do you find the mean?

Adding all the numbers and dividing the sum by the amount of numbers

How do you find the median?

Arrange the numbers from least to greatest and choose the middle value; if there is more than two, add them and divide by 2

How do you find the mode?

Find the number that occurs often

How do you find the range?

Subtract the low value number from the high value number

Positive + Positive = ?

Positive

What do you do when you add two positives?

Add

Negative + Negative = ?

Negative

What do you do when you add two negatives?

Add

Positive + Negative = ?

Larger integer’s sign

Negative + Positive = ?

Larger integer’s sign

What do you do when you add negatives with positives? (any order)

Subtract

Positive - Positive = ?

Larger integer’s sign

What do you do when you subtract two positives?

Subtract

Negative - Negative = ?

Larger integer’s sign

What do when you subtract two negatives?

Subtract

Positive - Negative = ?

Negative

What do you do when you subtract a negative from a positive?

Add

Negative - Positive = ?

Negative

What do you do when you subtract a positive from a negative?

Add

Same sign x Same sign = ?

Positive

Different sign x Different sign = ?

Negative

Same sign ÷ Same sign = ?

Positive

Different sign ÷ Different sign = ?

Negative