The rule for adding two integers depends on whether the signs of the addends are the same or different Rule for Adding Tw o Integers: TO ADD INTEGERS W ITH
If the integers have the same sign you ADD the numbers (based on absolute value) together and keep the sign ? If the integers have different signs you
+ (-) = add the numbers and the answer is negative Rule: If the signs are different, subtract the numbers and use the sign of the larger number
Integers- A set of positive and negative whole numbers Add the absolute value of the numbers and DIFFERENT SIGNS- Subtract and Keep
Using models, add any two integers with absolute value less than 10 You can also use counters to add two integers with unlike signs
Adding and Subtracting Integers Find each sum 1) 3 + (?7) 2) (?10) + 12 3) (?5) + 8 4) (?4) + 6 5) (?8) + 12 6) 6 + (?11) 7) (?7) + 2
To add two numbers with different signs (one positive and one negative): • Find the difference of their absolute values • Give the sum the same sign as the
Adding unlike integers Learning Objectives Add and subtract signed integers Translate English sentences involving addition and subtraction into
Here is the rule: When the signs are different and you are adding integers, take the sign of the larger number and subtract the two numbers Page 2 • Have
Adding Integers with Different Signs Practice and Problem Solving: D Show the addition on the number line Then write the sum The first
Adding and Subtracting Integers Find each sum 1) 3 + (−7) 2) (−10) + 12 3) ( −5) + 8 4) (−4) + 6 5) (−8) + 12 6) 6 + (−11) 7) (−7) + 2 8) (−12) + (−5)
Integers- A set of positive and negative whole numbers They can be Add the absolute value of the numbers and DIFFERENT SIGNS- Subtract and Keep
numbers; if you are adding or subtracting a negative number, face the negative Other forms of cancellation instruction use different contexts for exploring the
If the signs are different the result is negative Multiplication examples: POS POS POS = χ POS NEG