Adding & subtracting negative numbers (video)

How to Add Negative Numbers

Adding and Subtracting Integers Using a Simple Method

Adding and subtracting negative numbers - Pre-Algebra - Khan Academy - on Vimeo

Adding & subtracting negative numbers (video)

How to Add and Subtract Negatives: 13 Steps (with Pictures)

KS3 Maths: How to add and subtract positive and negative numbers - BBC Bitesize

Subtraction of Positive & Negative Numbers - Lesson

Khan Academy — Liz Roffey

Lesson: Order of Operations: Negative Numbers

Negative Numbers Exercise Level 1

Adding Positive and Negative Numbers - KATE'S MATH LESSONS

Adding & subtracting negative numbers (video)

Adding & Subtracting Negative Fractions - Video