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MIDDLE SCHOOL

Mathematics (Grade 7)

Adding and Subtracting Rational Numbers

Adding Rational Numbers Using Number Lines
01:30
Adding Rational Numbers Using Number Lines

Adding rational numbers involves combining values that can be expressed as fractions or decimals, including positive and negative numbers. A number li

Video Duration: 1 minute and 30 seconds
Free Sample
Subtracting Rational Numbers Using Number Lines
01:28
Subtracting Rational Numbers Using Number Lines

Subtracting rational numbers involves finding the difference between two values, which can include positive and negative whole numbers, decimals, or f

Video Duration: 1 minute and 28 seconds
Subtracting Integers with Mixed Signs
01:28
Subtracting Integers with Mixed Signs

Subtracting integers with mixed signs means finding the difference between positive and negative whole numbers. These situations appear often in real

Video Duration: 1 minute and 28 seconds
Using Properties to Add and Subtract Efficiently
01:08
Using Properties to Add and Subtract Efficiently

Using properties of numbers helps simplify addition and subtraction of rational numbers. These properties—such as the commutative property, associativ

Video Duration: 1 minute and 8 seconds
Why the Addition and Subtraction Rules Work
01:10
Why the Addition and Subtraction Rules Work

Addition and subtraction of rational numbers follow specific rules that help ensure accurate results when working with positive and negative values. U

Video Duration: 1 minute and 10 seconds