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Free math video lessons for 5th grade

This is a collection of free math videos for 5th grade, showing varied exercises for each topic. They match Math Mammoth Grade 5 curriculum but will also work no matter which curriculum you follow (in other words, the videos don't rely on you having Math Mammoth curriculum).

Please choose a topic from the list. I will expand the list as I'm able to edit and upload more videos.


The four operations

Bar models for addition and subtraction equations, plus addition and subtraction terms

Review of concepts related to multiplication and division: simple equations, bar models, terminology

Long division with a two-digit divisor

Long division as continued (repeated) subtraction


Number theory

Divisibility rules

(Introduction to primes — as a review from 4th grade)

Prime factorization using factor trees


Problem solving

Problem solving with bar models: fractional part of a whole

Using bar models: a word problem where total and difference are given

More problem solving with bar models, part 1

More problem solving with bar models, part 2


Decimals

Decimal place value and adding decimals, up to 2 decimal digits

Decimal place value (to thousandths)

Fractions to decimals, and comparing decimals — up to 3 decimal digits (thousandths)

Add & subtract decimals using mental math

Multiplying decimals and whole numbers: scaling

Multiplying decimals by decimals: the shortcut

Long division with decimals, plus fractions to decimals

Divide decimals with mental math, part 1: sharing divisions (whole-number divisor)

Divide decimals with mental math, part 2: divisor is a decimal

Divide decimals by decimals

Multiply and divide decimals by powers of ten

Decimal division: problem solving

Problem solving with decimals


Decimals in measuring units — introduction

Basics of the metric system and the prefixes



Graphing and Statistics

Numerical patterns in the coordinate grid

Drawing a histogram and a double bar graph

Mean and mode


Fractions

All of the fraction arithmetic videos are found on these pages:

Fraction videos, part 1
This collection covers mixed numbers, equivalent fractions, fraction addition, fraction subtraction, and comparing fractions.

Fraction videos, part 2
This collection covers simplifying, multiplying, and dividing fractions; fractions to decimals; ratios and fractions; and finding a fractional part of a group of objects.


Geometry

Area and perimeter problems

Classify triangles

Classify quadrilaterals

Volume of a rectangular prism and cubic units

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