Get ready for 4th grade math
Get ready for 4th grade math! Learn the skills that will set you up for success in place value; addition and subtraction; multiplication and division; fractions; plane figures; and area and perimeter.
7 units65 videos4 hours
Learn it live with a class on Puzzicle · Teachers: use it with your class
Unit 1: Get ready for place value
Intro to place value
Numbers in different forms
Regroup whole numbers
Unit 2: Get ready for addition, subtraction, and estimation
Rounding to the nearest 10 or 100
Strategies for adding two and three-digit numbers
Strategies for subtracting two and three-digit numbers
Adding and subtracting within 1,000
Using place value to add 3-digit numbers: part 1 ✓ Check-ins2:26
Using place value to add 3-digit numbers: part 2 ✓ Check-ins2:30
Adding 3-digit numbers ✓ Check-ins3:04
Worked example: Subtracting 3-digit numbers (regrouping) ✓ Check-ins2:47
Subtracting 3-digit numbers (regrouping) ✓ Check-ins3:20
Worked example: Subtracting 3-digit numbers (regrouping from 0) ✓ Check-ins2:24
Unit 3: Get ready for multiplication
Multiplication as equal groups
Multiplication on the number line
Multiplication as groups of objects
Multiplication with arrays
Commutative property of multiplication
Associative property of multiplication
Unit 4: Get ready for division
Division intro
Relate multiplication and division
Unit 5: Get ready for fractions
Fractions in contexts
What fractions mean
Fractions on the number line
Fractions and whole numbers
Comparing fractions
Unit 6: Get ready for plane figures
Quadrilaterals
Unit 7: Get ready for area and perimeter
Area formula intuition
Multiply to find area
Learn this with a class
With a class on Puzzicle this course runs as a timetable of live study parties: your batch watches together and answers the check-ins, sometimes with a teacher leading.
Course content © Khan Academy, used under CC BY-NC-SA. See this course on Khan Academy.