Adding and Subtracting Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Tags

CCSS.5.NBT.A.2

Front

How do you add mixed numbers?

Back

To add mixed numbers, convert them to improper fractions, find a common denominator, add the fractions, and then convert back to a mixed number if necessary.

Tags

CCSS.7.NS.A.1C

Front

What is the 'keep, change, flip' method?

Back

The 'keep, change, flip' method is a technique used to divide fractions: keep the first fraction, change the division sign to multiplication, and flip the second fraction.

Tags

CCSS.7.NS.A.2B

Front

How do you subtract a negative number?

Back

Subtracting a negative number is the same as adding its positive counterpart.

Tags

CCSS.7.NS.A.1C

Front

Back

Tags

CCSS.7.NS.A.1C

Front

Back

Tags

CCSS.7.NS.A.1D

Front

Back

Tags

CCSS.7.NS.A.1C

Front

How do you add a positive and a negative number?

Back

To add a positive and a negative number, subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value.

Tags

CCSS.7.NS.A.1C

Front

Back

Tags

CCSS.7.NS.A.1C

Front

If Trisha has $230 and spends $319, what is her account balance?

Back

$-89.

Tags

CCSS.7.NS.A.1C