Unit 1 Review - Rational Numbers

How to solve SUBTRACTION problems with RATIONAL NUMBERS

• Additive Inverse (Keep Switch Switch)

• Different Signs Subtract

• SPUN

• Keep the Signs the Same

Negative + Negative = _______________

• Nagative

• Positive

• Different Signs Subtract

• Add the Opposite

• Negative

• Positive

• SPUN

• Additive Inverse

• Negative

• Positive

• SPUN

• Different Signs Subtract

To Add and Subtract Fraction you need .........

• Common Denominators

• SPUN

• Cross Simplify

• Different Signs Subtract

To Divide Fractions .........

• Count and Move

• Common Denominators

• Keep Switch Flip, then Multiply

• Divide Straight Across

To multiply fractions....

• Common Denominators

• Keep Switch Flip

• Cross Simplify, the multiply straight across

• SPUN

To Multiply Decimals.....

• Multiply, Count and Move

• Line Up Decimals and bring down decimal

To Add and Subtract Decimals...

• Line Up the decimals (place values)

• Count and Move

2.5 x 3.45

What is the answer based on the rule for multiplying decimals?

• 8625

• 8.625

• 86.25

• 862.5