Adding Subtracting Multiply Divide Negative

Use the absolute value shortcut when adding...

• positive + negative

• negative + negative

When adding or subtracting fractions, I must always have a (a)   . I then add or subtract the ​ (b)   and keep ​ (c)   the same.

• Common Denominator

• Numerators

• Denominator

• Common Numerators

• Divisor

• Dividend

Change the following subtraction problems to addition using Keep - Change - Change, then put them under the correct adding rule you would use to solve the problem.

Groups:

(a) Adding Numbers with the same sign

,

(b) Adding Numbers with different signs

Match the Rational Number Operation with the correct rule directions.

• subtract, take the sign of the bigger #

• Adding Numbers with the same sign

• Answer is always positive

• Multiplying/Dividing the same sign

• Keep Change Change then follow add rules

• Subtracting

• Add the numbers, keep the sign

• Adding numbers with different signs

• Answer is always negative

• Multiplying/Dividing different signs

When ​ (a)   decimals, I must always ​ (b)   the decimals.

• adding or subtracting

• line up

• multiplying or dividing

• get rid of

What do you get when you multiply a negative by a positive?

• Positive

• Negative

What do you get when you divide a negative by a negative?

• Positive

• Negative

What do you get when you multiply a negative by zero?

• Positive

• Negative

• Zero

subtracting integers (rule)

• subtract their absolute value; keep the sign of the integer with the higher absolute value

• add their absolute value and keep the sign of the integers

• change subtraction sign (between the integers) to an addition sign and change the sign of the integer following it to its opposite (if it was positive, make it negative; if it was negative, make it positive); then solve

adding integers with DIFFERENT signs

• subtract their absolute value; keep the sign of the integer with the higher absolute value

• add their absolute value and keep the sign of the integers

• change subtraction sign (between the integers) to an addition sign and change the sign of the integer following it to its opposite (if it was positive, make it negative; if it was negative, make it positive); then solve