# 7.NS.A.1b / 7.NS.A.1c - Addition and Subtraction of Rational Numbers (Part 1 of 2)

## By MathwithMrAlmeida

Watch Mr. Almeida fully explain how to add and subtract rational numbers using vectors and the concept of a number line.

# Additive inverse and distance between two points on a number line

## By Don't Memorise

Absolute value of their difference

# Rational Numbers As Quotients of Integers

## By Anil Kumar

every quotient of integers is a rational number.

# Multiplying and dividing negative numbers

Find the product of numbers with different signs.

# Multiplying and dividing negative numbers

Use the distributive property to understand the products of negative numbers.

# Multiplying and dividing negative numbers

Learn some rules of thumb for multiplying positive and negative numbers.

# Multiplying and dividing negative numbers

Discover the basics of dividing with negative numbers.ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

# Multiplying and dividing negative numbers

Use the repeated addition model of multiplication to give an understanding of multiplying negative numbers.

# Dividing mixed numbers

Dividing Mixed Numbers

# Comparing rational numbers

U09_L1_T3_we4 Comparing Rational Numbers

# Division of Rational Numbers

This video walks through the division of 4-5 rational numbers and includes a word problem.

# Order of operations with negative numbers

Simplify this tricky expression using the order of operations. ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ Expression include negative numbers and exponents.

# Order of operations with negative numbers

Work through another challenging order of operations example with only positive numbers.

# Order of operations with negative numbers

This example clarifies the purpose of order of operations: to have ONE way to interpret a mathematical statement.

# Converting fractions to decimals

Sometimes when you convert a fraction to a decimal you have to do some long division and rounding.

# Converting fractions to decimals

This is a great example of converting a fraction to a decimal. Use a scratch pad so you can follow along.

# Converting fractions to decimals

How to express a fraction as a decimal