Subtracting 1 vs. subtracting 10 | Addition and subtraction within 100

Sal talks about the difference between subtracting 1 and subtracting 10.

Subtraction

By Skubes ed

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Subtracting 1 vs. subtracting 10 | Addition and subtraction within 100 | 2nd grade | Khan Academy

Sal talks about the difference between subtracting 1 and subtracting 10.

Multi-digit Subtraction

By mathantics

Multi-digit Subtraction

Subtraction within 20

Learn how to subtract 14 - 6 by first thinking about subtracting 2 and 4.

By TabletClass Math

Sal defines what it means to add or subtract matrices. He shows a few examples and discusses some important properties of matrix addition and subtraction.

One-step equations with addition and subtraction

Learn how to solve one-step addition and subtraction equations by adding or subtracting the same thing from both sides of the equation.

Addition and subtraction word problems 2

Addition and subtraction word problems 2

Addition and subtraction word problems 1

Addition and subtraction word problems 1

Subtraction within 100

Learn how to subtract 23 from 65 by thinking about tens and ones.

By TutorVista

YouTube presents Addition and Subtraction Of Vectors, an educational video resource on math.

Subtracting Integers

Subtracting Integers

Addition and subtraction with number lines

Sal figures out which number line matches up with a 2-digit addition or subtraction problem.

Addition & Subtraction of Mixed Numbers: With Same Denominators

By Red River College -Tutoring

Addition & Subtraction of Mixed Numbers: With Same Denominators

Subtracting Fractions in a Word Problem

By Skubes ed

Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

ADDITION & SUBTRACTION OF RATIONAL EXPRESSIONS WITH DIFFERENT DENOMINATORS (ANIMATION)

ADDITION & SUBTRACTION OF RATIONAL EXPRESSIONS WITH DIFFERENT DENOMINATORS (ANIMATION)