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.
Chapter 1: The four operations
Review: Addition and Subtraction – this lesson uses bar models for addition and subtraction equations, plus teaches some math terms related to addition and subtraction
Review: Multiplication and Division – simple equations, bar models, terminology
The Multiplication Algorithm: 2-by-3 digit multiplication, plus a word problem
Divide in Parts (as part of the lesson Long Division in chapter 1)
Long division with a two-digit divisor
Long division as continued (repeated) subtraction
Chapter 1: Number theory
(Introduction to primes — as a review from 4th grade)
Prime factorization using factor trees
Chapter 2: Place value / large numbers
Adding and subtracting large numbers
Example: finding powers of 7 with a calculator
Examples of calculator usage: word problems
Chapter 3: Problem solving
Balance problems and equations
Problem solving with bar models 1: fractional part of a whole
Problem solving with bar models 2: a word problem where total and difference are given
Problem solving with bar models 3
Problem solving with bar models 4
Chapter 4: 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
Divide decimals by whole numbers (long division with decimals) — plus fractions to decimals
Divide decimals by whole numbers: problem solving
Chapter 5: Graphing and Statistics
Numerical patterns in the coordinate grid
Drawing a histogram and a double bar graph
Chapter 6: Decimals
Multiplying decimals by decimals: the shortcut
Multiplying decimals and whole numbers: scaling
Divide decimals with mental math, part 1: sharing divisions (whole-number divisor)
Divide decimals with mental math, part 2: divisor is a decimal
Multiply and divide decimals by powers of ten
Problem solving (with decimals)
Decimals in measuring units — introduction
The metric system (2 videos)
Rounding and estimating with measurements
Chapter 7: Fractions: Add and Subtract
Mixed numbers to fractions and vice versa
Add and subtract like fractions
Add mixed numbers (like fractional parts)
Subtract mixed numbers (like fractional parts)
Adding & subtracting mixed numbers
See also: Add and subtract fractions – online practice
Chapter 8: Fractions: Multiply and Divide
Multiply fractions by whole numbers
Multiply fractions by fractions
Fraction multiplication and area
Simplifying before multiplying
Multiplication as scaling/resizing
Dividing fractions: sharing divisions
Dividing fractions: fitting the divisor
Dividing fractions: the shortcut
Chapter 9: Geometry
Draw a square with a given side, and copy a triangle
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