Operations with Rational Numbers Word Problems

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 two rational numbers with different denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

Tags

CCSS.7.NS.A.1C

Front

What is the process to subtract rational numbers?

Back

To subtract rational numbers, find a common denominator, convert each fraction, and then subtract the numerators.

Tags

CCSS.7.NS.A.1C

Front

How do you multiply two rational numbers?

Back

To multiply two rational numbers, multiply the numerators together and the denominators together.

Tags

CCSS.7.NS.A.2C

Front

What is the rule for dividing rational numbers?

Back

To divide by a rational number, multiply by its reciprocal (flip the second fraction and multiply).

Tags

CCSS.7.NS.A.2C

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100.

Front

What is the first step in solving a word problem involving money?

Back

Identify the amounts involved and the operations needed (addition, subtraction, etc.).

Tags

CCSS.5.NBT.B.7

Front

If Jonah had $340.87 and withdrew $52, what operation do you perform to find the new balance?

Back

You perform subtraction: $340.87 - $52.

Tags

CCSS.6.NS.B.3

Front

How do you compare fractions to order them from least to greatest?

Back

Convert all fractions to have a common denominator or convert them to decimals to compare.

Tags

CCSS.3.NF.A.3D

Front

What is the total amount of candy Nik has after giving some away and receiving more?

Back

Start with the initial amount, subtract what he gave away, and add what he received.

Tags

CCSS.1.OA.A.1