UCLA psychologist Martin Monti describes how, contrary to what most of us naively believe, there is ample evidence that many animals can perform basic mathematical operations.

UCL developmental psychologist Uta Frith describes how she used brain scanning technology to illustrate that the brain uses specific networks when involved in so-called “mentalizing activities” central to understanding autism.

Learn about the basics of Subtraction and Equal symbols with Subtraction Song by the KLT.

“Subtraction Word Problems” solves real-world word problems that require subtraction and regrouping across zeros.

In this video, we'll explore the concept of borrowing in subtraction and regrouping. This is a crucial math skill for students in 3rd, 4th, and 5th grades as it helps them subtract larger numbers with ease and accuracy. Check out the...

“Two-Step Subtraction” identifies keywords for subtraction and solves several subtraction word problems that require two steps.

Two-Step Equations shows how to write two-step single variable equations by using verbal models.

Simplify algebraic expressions by using the order of operations.

“Complex Numbers” will explain what a complex number is and how to apply operations to complex numbers.

"Subtracting Cookies" uses cookies to model subtraction problems.

“Subtracting with Symbols” demonstrates strategies for solving subtraction problems that use symbols to represent unknown numbers.

A video entitled "Add and Subtract Fractions" which explores multiple methods for adding and subtracting fractions that have the same denominator.

Join Jedi Taylor as she takes you on an adventure to a galaxy far, far away to learn how to subtract two digit numbers without and with regrouping.

The video “Subtract by Making Tens” uses the making tens strategy modeled with a ten frame or number line to solve several subtraction problems.

A video entitled "Addition When Subtracting" which shows you how to solve subtraction problems by using a strategy involving addition.

Equations with Fractions demonstrates how to solve one-step equations by using reciprocals when the coefficient of the variable is a fraction.

A video entitled “Subtract with a Number Line” describes ways to solve subtraction problems using a number line.

A video entitled “Problem-Solving Liquid Volume” which demonstrates how to use a number line to solve metric liquid volume word problems.

The video “Model Multistep Problems” uses base ten block models to solve two-step problems involving addition and subtraction.

This movie introduces the concept of finding a missing part. Using both addition and subtraction are discussed, as well as drawing pictures to match a story problem.

Subtraction within 10 | Subtraction | Numbers| Y1 Maths | FuseSchool Kids

This video explains JavaScript operators and demonstrates how to use them.
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This clip is from the chapter "JavaScript Introduction" of the series "Modern Web Design with HTML5, CSS3, and JavaScript".This section introduces you...

In this video, you'll learn the different types of operators in JavaScript.
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This clip is from the chapter "Coding with JavaScript" of the series "Learn JavaScript from Scratch: JavaScript for Everyone".In this section, you'll...

This video introduces you to the JavaScript assignment operators.
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This clip is from the chapter "JavaScript Introduction" of the series "Modern Web Design with HTML5, CSS3, and JavaScript".This section introduces you to...