Easy Math for 3rd Grade

Explore numbers up to 100 by reading and writing digits in the decimal system, using a place value chart to distinguish units, tens, and hundreds.

Explore the place value of a digit in two-digit numbers, learning how tens and units contribute to the total and how to convert between expanded and standard forms.

Explore how to recognize and distinguish even and odd numbers up to 100, learn rules for the units digit, and practice identifying even numbers by dividing into two equal parts.

Learn to identify predecessors and successors by finding one less or one more, using number lines, and applying greater, smaller, more, and less.

Learn to compare two-digit numbers using greater than, less than, and equal to signs, focusing on tens and units, with number line insights and practical examples.

Count to 100 and master the tens with a number line and table, counting forward and backward, and view 100 as a number with digits for hundredths, tenths, and units.

Explore natural, whole, and negative numbers and how they sit on a number line. Learn about positive and negative signs, zero, and measuring temperatures with these concepts.

Learn about numbers and the number line from zero to one hundred, place numbers on the line, and count forwards or backwards by two, three, four, five, and ten.

Explore table 100, a grid of the first 100 numbers arranged by tens and units, and learn to find missing numbers, identify ten groups, and practice number patterns.

Learn to add with the table 100 by moving down for tens and right for units, shown with 36 plus 13 equals 49 and 52 plus 34 equals 86.

learn to subtract with table 100 by breaking numbers into tens and ones, using 76 minus 53 as example, and apply directional rules to move left, right, up, and down.

Learn to round two-digit numbers to the nearest ten using the table 100, deciding down to the previous ten or up to the next ten by the ones digit.

Explore numbers up to 1000 by identifying three-digit numbers and decoding hundreds, tens, and units through place value charts, accounting frames, and graphical representations.

Learn to read and write hundreds of the first thousand, place three-digit numbers in a hundreds sequence, and sort them. Understand 1000’s place value across thousands, hundreds, tens, and units.

Explore reading and writing numbers up to 1000 by decomposing three-digit numbers into hundreds, tens, and units, and expressing them with a place value chart.

Explore tens of the first thousand and how hundreds and tens form numbers, practice placing tens across hundreds, and identify preceding and following tens.

Identify the place value of digits in three-digit numbers. Write numbers as a sum of hundreds, tens, and units, and show them on a counting frame and place value chart.

Learn how 1 to 1000 is organized by hundreds and tens, using tables of 100, a number line, and visual bars to teach skip counting by 100 and by ten.

Master comparing three-digit numbers by using place value, applying greater than, less than, and equal to signs, and following hundreds, tens, and ones rules with practice problems.

Learn how to round numbers to the nearest ten and hundred using place value rules, with examples and number lines to decide when to round up or down.

practice time-bound place-value tasks with three-digit numbers, including identifying smallest and largest three-digit numbers, odd and even numbers, decompositions, expanded form, and calculating predecessors and successors on a number line.

Practice self-checking place-value tasks by decomposing numbers into hundreds, tens, and ones, reading a tenths number line, and sorting numbers, with examples like 753, 316, 144, and 358.

Introduce numbers up to ten thousand by building place value from thousands to ones, exploring digits, expanded form, and counting on a number line.

Learn to read and write four-digit numbers up to 10,000 using place value concepts, color-coded digits, expanded form, and the thousands, hundreds, tens, and ones framework.

Distinguish digits from numbers and explain how place value depends on position, using a chart to read, write, and express thousands, hundreds, tens, and ones in expanded form.

Master skip counting forwards and backwards by ten, hundred, and thousand to understand addition and subtraction and place-value changes across units, tens, hundreds, and thousands.

Learn to compare four-digit numbers using the signs greater than, less than, and equal to, applying place-value rules for thousands, hundreds, tens, and ones, with examples and practice.

Learn to round numbers to the nearest ten, hundred, or thousand using digits in ones, tens, and hundreds. Apply rules with examples and a number line.

Explore place value concepts, digits in thousands, hundreds, tens, and ones, and tenths and hundredths; convert numbers to digits and expanded form, compare, order, and identify odd/even digits.

Master addition with carryover up to 20 and the components of addition, including addend, second addend, and sum, using a number line and circle models to decompose to ten.

Learn to add two-digit and one-digit numbers without carry over by breaking numbers into tens and units, using horizontal, vertical, and column methods to reach sums like 77 and 17.

learn subtraction as the inverse of addition, using minuet, subtract hand, and difference to solve 36 minus 6. explore place value, number lines, and varied strategies for 24 minus 4.

Learn to subtract a one-digit number from a two-digit number without carry over, using 58 minus 5 as the example, with tens and units.

Learn to add a one-digit number to a two-digit number by adding to a full ten, using 46 plus 4 as a guided example and applying place-value strategies.

Learn to subtract a one-digit number from a full ten using step-by-step techniques, including decomposing numbers, borrowing from tens, and solving with circles, number lines, and place-value charts.

Master carrying over in adding two-digit and one-digit numbers by decomposing to reach ten, then adding remaining ones, as shown by 74 plus 9 and 25 plus 8.

Learn to subtract a one-digit number from a two-digit number using borrowing, decomposing the subtrahend into two parts, and solving with mental, horizontal, and place-value methods.

Learn to add a two-digit number with a full ten by adding the ones digit to the ten, using place-value and tens-ones breakdown with examples like 33 plus 50.

Explore subtracting a full ten from a two-digit number by decomposing into tens and ones. Use tens-from-tens, ones-from-ones rules, place-value charts, and mental strategies.

Add two-digit numbers without carry by decomposing tens and ones, using horizontal, vertical, and place-value methods. Solve word problems like 23+54 and 56+23 to get 77 and 79.

Learn to subtract two-digit numbers without carryover by grouping tens and units, using step-by-step and mental strategies, with examples like 48-23 and 76-22 and related practice tasks.

Learn to add two two-digit numbers with carries, using decomposition into tens and ones, place-value charts, and column methods, illustrated by 54 plus 38.

Learn to subtract a two-digit number from another by breaking into tens and ones and borrowing when needed, with examples like 90 minus 23 and 70 minus 48.

Learn to subtract a two-digit number from another two-digit number using tens and ones, borrowing, and decomposition, then apply to real-world word problems like ages and mushrooms.

Practice adding and subtracting hundreds by treating hundreds, tens, and ones as digits, with examples like 300+600=900 and 900-600=300 and two word problems.

This lesson demonstrates the commutative property of addition, showing that changing the order of addends does not change the sum, and teaches grouping addends to simplify totals.

Learn how to determine unknown numbers by using addition and subtraction, solving simple equations like x+5=15 or 36+x=100, and checking results.

master adding a three-digit number to a one-digit number using place value charts, decomposition into hundreds, tens, and ones, and carrying when ones sum to more than ten.

Explore subtracting a one-digit number from a three-digit number using decomposition into hundreds, tens, and ones, with borrowing and place value charts, vertical, and column methods.

Learn to perform oral addition of a three-digit number with a full ten by decomposing into hundreds and tenths, applying the commutative property, and practicing on a number line.

Learn to add a three-digit number and a two-digit number by decomposing into hundreds, tens, and ones, and using place-value charts, horizontal, and column methods.

Learn to subtract a two-digit number from a three-digit number by decomposing into hundreds, tens, and ones, borrowing as needed, and using place-value methods.

Learn to add three-digit numbers by decomposing into hundreds, tens, and ones, using a place value chart and column addition, with carry over when needed.

Master multiplication as the sum of equal addends, recognize the multiplication sign, and write the product of two numbers using factors and groups.

Explore the commutative property of multiplication, showing that changing the order of factors like 3×5 and 5×3 yields the same product.

Explore how multiplying by the number two turns repeated addition into a product, learn factors and product, and practice the two times table with number lines, jumps, and cards.

Learn division as grouping into equal parts using the division sign, identify dividend, divisor, and quotient, and see its inverse relationship to multiplication for solving equations and world problems.

Master division by two using a number line, learn the link with multiplication, and solve simple word problems by dividing and multiplying with the two times table.

Master doubling and half by multiplying by two and dividing by two, with practical examples like apples, pages, and butterflies to show two times more or less.

Master multiplication by one and by zero, showing that any number multiplied by one remains the same and any number multiplied by zero equals zero, guided by the commutative property.

Learn how dividing by one keeps the quotient equal to the dividend, and zero divided by any number is zero; never divide by zero, verify with multiplication.

Discover that any number divided by itself equals one, as shown by 6 divided by 6 and 50 divided by 50, and learn that dividing by zero is not allowed.

Master multiplication by three through skip counting, the three times table, and multiples, while recognizing product, factors, and the commutative property.

Master dividing by three by relating division to multiplication, using multiples of three and mental math checks with examples like 12 divided by 3 and 21 divided by 3.

Explore multiplication and division by four, using the four times table, multiples of four, and the matrix approach to connect division with multiplication and solve word problems.

Master multiplication and division by five through counting by fives, recognizing five's multiples, and checking division with multiplication, using real-world examples like eggs and classroom groups.

Learn to multiply and divide by ten, add or remove a zero, understand ten times and one tenth, and apply the order of operations.

Learn multiplication and division by six, practice the six times table, and solve word problems such as six eggs for each grandchild and six cookies per child.

Explore multiplication and division by seven through Snow White and the Seven Dwarves, building the seven times table, the commutative property, and practical one-step problems.

Master multiplication and division by eight, learn commutative properties, explore eight's multiples and related word problems, and apply order of operations for practical calculations.

Explore multiplying and dividing by nine, learn the nine times table, commutative property, and digit patterns in tens and ones, with tricks and word problems.

Learn an easy finger-based trick to multiply by nine in this third-grade math lesson, using bendable fingers to model tens and ones for quick, accurate results.

Explore a finger-based multiplication method for 6 through 9, using fingers to represent numbers, with touching fingers giving tens and remaining fingers giving ones. Practice to reinforce tens and ones.

Define point, line, and plane, and identify straight and curved lines, open and closed lines, and the roles of sides, vertices, and the inside area and the outside area.

Learn how a straight line extends infinitely and how points relate to it. Through two different points, one line forms; collinear and non collinear points describe arrangements.

Explore how a point on a line creates two rays, define rays as half-lines starting at a point and extending forever, and learn naming conventions like ap1 and ap2.

Explore line segments as parts of lines defined by two endpoints, distinguish them from full lines, and learn to measure its length with a ruler.

Practice identifying whether points belong to lines and drawing lines through points. Explore collinear versus non-collinear points and the infinite nature of lines.

Learn about planes and the relationship between two lines in a plane, including intersecting, perpendicular, and parallel lines, and identify horizontal, vertical, and inclined planes.

Learn to draw parallel lines five centimeters apart using a ruler and triangle, and to draw perpendicular lines with a right-angle triangle. Practice both methods.

Practice identifying parallel and intersecting lines among A, B, C, and D, noting that C and D are parallel and others intersect. Learn to draw a perpendicular through a point using a right-angle triangle, reinforcing perpendicular lines.

Learn what makes an angle from two rays with a common endpoint, identify the vertex and sides, and name angles with three-letter notation or Greek letters.

Learn to identify straight angles at 180 degrees, right angles at 90 degrees, and acute and obtuse angles from 0–89 and 91–179 degrees.

Learn to measure angles using a protractor, identify the vertex and baseline, read degree measures on both scales, and recognize right angles as 90 degrees.

Learn to draw angles using a ruler, protractor, and triangles; identify lines, rays, and vertices, and construct right angles and a 45-degree angle.

Master how fractions form numbers by division, illustrated with apples and circles. See how the whole splits into equal parts, with a fraction bar, numerator, and denominator.

Learn to read and write fractions by identifying the denominator and numerator, using the fraction bar, and counting parts like halves, thirds, and quarters.

Learn to read fractions by identifying the parts the whole is divided into (denominator) and the parts colored (numerator), with examples like 2/5, 3/4, 4/9, and one half.

Learn to color fractions by dividing a whole into equal parts and using numerator and denominator to show how many parts to shade, with examples like 3/5 and 1/3.