By Topic
Number System
Counting, place value, and comparing numbers — from numbers up to 20 in Kindergarten all the way to integers, rational numbers, and real numbers in Grade 8.
9 grades covered
22 chapters
118 lessons
Grades K–8
Kindergarten — Number System
Fun with NumbersGo to chapter →
1
Identify Less, More, As Many As, Using Matching
2
Count, Read, and Write Numbers in Figures up to 10
3
Count, Read, and Write Numbers in Words up to 10
4
Count in Different Directions upto 10
Numbers to 20Go to chapter →
1
Count, Read, and Write Numbers from 11 to 20 in Figures and Words
2
Identify Numbers Before, After, and Between Numbers upto 20
3
Compare Numbers to 20
Grade 1 — Number System
Joy of NumbersGo to chapter →
1
Represent Numbers Up To 19 Using Blocks And Rods
2
Identify Numbers Just After, Just Before, And Between Up To 19
3
Compare Numbers up to 19
4
Understand Ordinal Numbers up to 20
Mental MathGo to chapter →
1
Add and Subtract 1 from a number
2
Understand and use doubles to find the sum
3
Count on to add and Count back to subtract mentally
4
Add Numbers in Any Order
5
Add 3 Numbers by grouping them in different ways
Magic with More NumbersGo to chapter →
1
Count up to 90 by Tens
2
Count, Read, and Write 2-digit Numbers from 20 to 49
3
Count, Read, and Write 2-digit Numbers from 50 to 79
4
Count, Read, and Write 2-digit Numbers from 80 to 99
5
Count, Read, and Write Numbers up to 120
6
Identify Numbers Just Before, Just After, and Between Numbers up to 120
More About More NumbersGo to chapter →
1
Identify the Place Values and Face Values of Digits in 2-Digit Numbers
2
Write a 2-Digit Number in Expanded Form and Standard Form
3
Compare Numbers up to 99
4
Order Numbers up to 99
5
Skip Count Numbers by 2 till 99
6
Skip Count Numbers by 5 till 99
7
Skip Count Numbers by 10 till 99
Grade 2 — Number System
Magic with NumbersGo to chapter →
1
Count and Write Numbers up to 200
2
Count and Write Numbers up to 1000
3
Identify Numbers Before, After, and Between Numbers up to 1000
4
Identify Place, Place Value, and Face Value in 3-digit numbers
5
Write Expanded Form and Standard Form of 3-digit Numbers
6
Compare 3-Digit Numbers
7
Order 3-Digit Numbers
Playing with NumbersGo to chapter →
1
Skip Count up to 3-digit Numbers by 2 and 3
2
Skip Count up to 3-digit Numbers by 5, 10, and 100
3
Round-off up to 3-digit Numbers to the Nearest Ten
4
Round-off up to 3-digit Numbers to the Nearest Hundred
Grade 3 — Number System
Number SystemGo to chapter →
1
Read and Write 4-Digit Numbers
2
Write 4-Digit Numbers in Sequence
3
Understand Place Value of 4-Digit Numbers
4
Compare and Order 4-Digit Numbers
5
Rounding numbers up to 4-Digits to Nearest Tens and Hundreds
6
Skip Counting numbers up to 4 digits by 10, 100, and 1000
Grade 4 — Number System
Number SystemsGo to chapter →
1
Read and Write Numbers Till 99999
2
Read and Write Numbers till 999999
3
Understand Place Value of 5- and 6-Digit Numbers
4
Write Numbers in Expanded Form and Standard Form
5
Compare Numbers up to 6 Digits
6
Order 5- and 6-Digit Numbers
7
Round Numbers up to 6 Digits
Number SystemGo to chapter →
1
Read and Write 5 and 6-digit numbers
2
Identify the Place Value and Write 5 and 6-digit Numbers in Expanded and Standard form
3
Compare and Order Numbers up to 6 digits
4
Round Multi-Digit Numbers
Grade 5 — Number System
Number SystemGo to chapter →
1
Read and Write Numbers Upto 9-Digits
2
Identify the place value in Numbers up to 9-digits
3
Write Numbers Up To 9 Digits in Expanded Form and Standard Form
4
Use Exponents to Show Powers of 10
Number OperationsGo to chapter →
1
Understand Zero, One and Commutative Properties of Multiplication
2
Apply Associative and Distributive Properties of Multiplication
3
Multiply by Multiples of 10
4
Estimate the Products
5
Multiply Multi-Digit Numbers by Single Digits
6
Multiply Multi-Digt Numbers by Two and Three-Digit Numbers
7
Relate Multiplication and Division to Find Quotients
8
Divide 4-Digit Numbers by 2-Digit Numbers
9
Estimate the Quotients of Division
10
Solve Word Problems Involving all four Operations
Order of OperationsGo to chapter →
1
Simplify Expressions Using MDAS
2
Simplify Expressions with Parentheses
3
Simplify Expressions with Nested Parentheses
Grade 6 — Number System
Numbers and OperationsGo to chapter →
1
Use Standard Algorithm for Multidigit Division
2
Understand the Meaning of Exponents
3
Find the Squares of Numbers up to 20
4
Solve Expressions with Parentheses Using Order of Operations
5
Solve Expressions with Exponents Using Order of Operations
IntegersGo to chapter →
1
Understand Integers and Plot them on a Number Line
2
Understand Opposites and Absolute Values of Integers
3
Compare Integers
4
Order Integers
Integer OperationsGo to chapter →
1
Understand Addition of Integers
2
Understand Properties of Addition of Integers
3
Subtract Integers
4
Understand Properties of Subtraction of Integers
5
Solve Expressions with Integers Using Addition and Subtraction
Rational NumbersGo to chapter →
1
Understand Rational Numbers and Classify the Number System
2
Locate Rational Numbers on the Number Line
3
Find Opposites and Absolute Value of Rational Numbers
4
Compare and Order Rational Numbers
Grade 7 — Number System
Integer OperationsGo to chapter →
1
Add Integers
2
Subtract Integers
3
Multiply Integers
4
Divide Integers
5
Understand the Properties of Addition and Subtraction of Integers
6
Understand the Properties of Multiplication and Division of Integers
7
Understand the Distributive Property of Integers
8
Solve Problems on Order of Operations and Word Problems on Mixed Operations
Rational NumbersGo to chapter →
1
Add and Subtract Rational Numbers
2
Apply Properties of Addition and Subtraction of Rational Numbers
3
Multiply and Divide Rational Numbers
4
Apply Properties of Multiplication and Division of Rational Numbers
5
Solve Multi-Step Word Problems with Rational Number Operations
Grade 8 — Number System
ExponentsGo to chapter →
1
Basics of Exponents
2
Product and Quotient of Powers Property
3
Zero and Negative Exponents
4
Exponential Growth and Decay
5
Estimating Quantities
6
Scientific Notation
7
Operations in Scientific Notation
Real Numbers and the Pythagorean TheoremGo to chapter →
1
Square Roots
2
Pythagorean Theorem
3
Cube Roots
4
Rational Numbers
5
Irrational Numbers
6
Converse of The Pythagorean Theorem