Math flashcards

Addition Facts to 10

All the ways to add two numbers that make 10 or less.

66 cardsGrades K–2

Addition Facts to 20

Every sum from 0 + 0 to 10 + 10.

121 cardsGrades K–2

Cube Numbers 1–15

Cubes of 1 through 15 and their cube roots.

30 cardsGrades 6–8, Grades 9–12

Division Facts 0–12 (all)

Every division fact that matches a times-table fact up to 12 × 12.

156 cardsGrades 3–5, Grades 6–8

Division Facts: dividing by 1

Division facts with 1 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 10

Division facts with 10 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 11

Division facts with 11 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 12

Division facts with 12 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 2

Division facts with 2 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 3

Division facts with 3 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 4

Division facts with 4 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 5

Division facts with 5 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 6

Division facts with 6 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 7

Division facts with 7 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 8

Division facts with 8 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Division Facts: dividing by 9

Division facts with 9 as the divisor, answers 0 to 12.

13 cardsGrades 3–5

Doubles and Halves

Doubles from 1 to 20 and their halves.

40 cardsGrades K–2

Make Ten

What do you add to make 10?

11 cardsGrades K–2

Multiplying 13–20 by 2–9

Harder facts: the teens times the single digits.

64 cardsGrades 6–8

Powers of Ten and Their Names

Place values from the ones to the billions.

12 cardsGrades 6–8

Powers of Two

2⁰ through 2²⁰, the numbers computers love.

21 cardsGrades 6–8, Grades 9–12, College

Primes up to 100

Is it prime? The numbers 2 to 60 with a yes or no and why.

59 cardsGrades 6–8

Skip Counting by 10s

The first twelve numbers when you count by 10s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 11s

The first twelve numbers when you count by 11s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 12s

The first twelve numbers when you count by 12s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 15s

The first twelve numbers when you count by 15s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 2s

The first twelve numbers when you count by 2s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 20s

The first twelve numbers when you count by 20s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 25s

The first twelve numbers when you count by 25s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 3s

The first twelve numbers when you count by 3s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 4s

The first twelve numbers when you count by 4s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 5s

The first twelve numbers when you count by 5s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 6s

The first twelve numbers when you count by 6s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 7s

The first twelve numbers when you count by 7s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 8s

The first twelve numbers when you count by 8s.

12 cardsGrades K–2, Grades 3–5

Skip Counting by 9s

The first twelve numbers when you count by 9s.

12 cardsGrades K–2, Grades 3–5

Square Roots of Perfect Squares

Square roots of the perfect squares up to 900.

30 cardsGrades 6–8, Grades 9–12

Square Numbers 1–30

Squares of the numbers 1 through 30.

30 cardsGrades 6–8, Grades 9–12

Subtraction Facts from 20

Subtraction facts matching the addition facts to 20.

121 cardsGrades K–2

Times Tables: the 0s

Multiplication facts for 0, from 0 × 0 to 0 × 12.

13 cardsGrades 3–5

Times Tables: the 1s

Multiplication facts for 1, from 1 × 0 to 1 × 12.

13 cardsGrades 3–5

Times Tables: the 10s

Multiplication facts for 10, from 10 × 0 to 10 × 12.

13 cardsGrades 3–5

Times Tables: the 11s

Multiplication facts for 11, from 11 × 0 to 11 × 12.

13 cardsGrades 3–5

Times Tables: the 12s

Multiplication facts for 12, from 12 × 0 to 12 × 12.

13 cardsGrades 3–5

Times Tables: the 2s

Multiplication facts for 2, from 2 × 0 to 2 × 12.

13 cardsGrades 3–5

Times Tables: the 3s

Multiplication facts for 3, from 3 × 0 to 3 × 12.

13 cardsGrades 3–5

Times Tables: the 4s

Multiplication facts for 4, from 4 × 0 to 4 × 12.

13 cardsGrades 3–5

Times Tables: the 5s

Multiplication facts for 5, from 5 × 0 to 5 × 12.

13 cardsGrades 3–5

Times Tables: the 6s

Multiplication facts for 6, from 6 × 0 to 6 × 12.

13 cardsGrades 3–5

Times Tables: the 7s

Multiplication facts for 7, from 7 × 0 to 7 × 12.

13 cardsGrades 3–5

Times Tables: the 8s

Multiplication facts for 8, from 8 × 0 to 8 × 12.

13 cardsGrades 3–5

Times Tables: the 9s

Multiplication facts for 9, from 9 × 0 to 9 × 12.

13 cardsGrades 3–5

Multiplication Facts 0–12 (all 169)

Every multiplication fact from 0 × 0 to 12 × 12.

169 cardsGrades 3–5, Grades 6–8

Flat Shapes and Polygons

Names and properties of 2D shapes, polygons by number of sides, and kinds of triangles and quadrilaterals.

49 cardsGrades K–2, Grades 3–5, Grades 6–8

Solid Shapes: Faces, Edges, Vertices

3D shapes and their parts, including the Platonic solids and Euler's formula.

36 cardsGrades K–2, Grades 3–5, Grades 6–8

Algebra Rules and Properties

Properties of numbers, rules for solving equations and inequalities, and common factoring patterns.

56 cardsGrades 6–8, Grades 9–12

Algebra Terms

The vocabulary of algebra: expressions, equations, functions, graphing and polynomials.

65 cardsGrades 6–8, Grades 9–12

Angles, Lines and Circles

Kinds of angles, angle pairs, lines and the parts of a circle.

56 cardsGrades 3–5, Grades 6–8, Grades 9–12

Calculus Concepts and Limits

Core calculus vocabulary and limit values, from continuity to series tests.

58 cardsCollege, Grades 9–12

Coordinate Plane and Graphing

Parts of the coordinate plane, plotting points, transformations and reading graphs of functions.

63 cardsGrades 3–5, Grades 6–8, Grades 9–12

Cube Roots of Perfect Cubes

Cube roots of the perfect cubes from 1 to 8000.

20 cardsGrades 6–8, Grades 9–12

Derivative Rules

Differentiation rules and the derivatives of the common functions.

52 cardsGrades 9–12, College

Exponent Rules

The laws of exponents, with worked examples including zero, negative and fractional exponents.

41 cardsGrades 6–8, Grades 9–12

Factorials 0 to 12

n factorial is the product of all whole numbers from 1 up to n.

13 cardsGrades 9–12, College

Fractions, Decimals and Percents

Common fractions matched to their decimal and percent forms.

66 cardsGrades 3–5, Grades 6–8

Fractions: Terms and Operations

Fraction vocabulary and how to add, subtract, multiply, divide, simplify and compare fractions.

66 cardsGrades 3–5, Grades 6–8

Geometry Formulas: Area, Perimeter, Volume

The area, perimeter, circumference, surface area and volume formulas every student needs.

54 cardsGrades 6–8, Grades 9–12

Geometry Theorems and Rules

Triangle, circle and polygon theorems and congruence rules.

54 cardsGrades 9–12

Integral Rules and Antiderivatives

Antiderivatives of common functions, integration techniques and the fundamental theorem of calculus.

54 cardsCollege, Grades 9–12

Linear Algebra Terms

Vectors, matrices and the core ideas of linear algebra.

59 cardsCollege, Grades 9–12

Logarithm Rules and Values

What a logarithm means, the laws of logarithms and common log values.

44 cardsGrades 9–12, College

Famous Mathematicians

Mathematicians through history and what each is known for.

63 cardsGrades 6–8, Grades 9–12, Adult

Metric System: Units and Prefixes

Metric prefixes, conversions between metric units and benchmarks for estimating.

60 cardsGrades 3–5, Grades 6–8, Grades 9–12

Money Math

US coins and bills, making change, and simple money math like tax, tips and interest.

63 cardsGrades K–2, Grades 3–5, Grades 6–8

Number Theory and Divisibility

Divisibility rules, factors, multiples, GCF, LCM, primes and modular ideas.

67 cardsGrades 3–5, Grades 6–8, Grades 9–12

Types of Numbers

Natural, whole, integer, rational, irrational, real and special number families.

49 cardsGrades 3–5, Grades 6–8, Grades 9–12

Order of Operations (PEMDAS)

The order to do operations in, with practice expressions.

41 cardsGrades 3–5, Grades 6–8

Perfect Cubes 1 to 20

The cube of every whole number from 1 to 20.

20 cardsGrades 6–8, Grades 9–12

Perfect Squares 1 to 40

The square of every whole number from 1 to 40.

40 cardsGrades 3–5, Grades 6–8, Grades 9–12

Place Value and Big Numbers

Names of place values from ones to trillions and from tenths to millionths, and big number names.

48 cardsGrades K–2, Grades 3–5, Grades 6–8

Powers of 2, 3, 5, 6, 7 and 10

Common powers worth knowing by heart, including every power of 2 up to 2 to the 20th.

52 cardsGrades 6–8, Grades 9–12, Adult

The First 60 Prime Numbers

Prime numbers in order, by position, plus a few prime facts.

66 cardsGrades 3–5, Grades 6–8, Grades 9–12

Probability and Counting

Probability vocabulary, rules and counting formulas with simple examples.

52 cardsGrades 6–8, Grades 9–12

Roman Numerals

Read Roman numerals and write them, from I to MMMCMXCIX.

59 cardsGrades 3–5, Grades 6–8, Grades 9–12, Adult

Sequences, Series and Patterns

Arithmetic and geometric sequences, formulas for sums, and famous number patterns.

57 cardsGrades 6–8, Grades 9–12

Sets and Logic

Set vocabulary, Venn diagrams and basic logic statements.

62 cardsGrades 6–8, Grades 9–12, College

Square Roots of Perfect Squares

Square roots of the perfect squares from 1 to 1600.

40 cardsGrades 6–8, Grades 9–12

Statistics Terms

Descriptive and inferential statistics vocabulary, from mean and median to confidence intervals.

64 cardsGrades 6–8, Grades 9–12, College

Math Symbols and Their Names

Common math symbols and what each one means.

73 cardsGrades 3–5, Grades 6–8, Grades 9–12, College

Time and the Calendar

Time units, telling time, elapsed time and the calendar.

61 cardsGrades K–2, Grades 3–5, Grades 6–8

Trig Definitions and Identities

Right-triangle ratios, reciprocal, Pythagorean, angle-sum, double-angle and half-angle identities.

54 cardsGrades 9–12, College

Trig Values at Special Angles

Sine, cosine and tangent at the common unit-circle angles in degrees and radians.

77 cardsGrades 9–12, College

US Customary Units and Conversions

Inches, feet, pounds, gallons and how they convert, plus metric-to-US benchmarks.

67 cardsGrades 3–5, Grades 6–8, Adult

Math Words for Grades 3-5

Key math vocabulary for multiplication, fractions, decimals, geometry and data.

77 cardsGrades 3–5

Math Words for Grades 6-8

Middle school math vocabulary: ratios, integers, expressions, equations, geometry and statistics.

79 cardsGrades 6–8

Math Words for High School

High school vocabulary from algebra, geometry, trigonometry and precalculus.

77 cardsGrades 9–12

Math Words for Grades K-2

The first math words kids meet: counting, adding, shapes, comparing and measuring.

66 cardsGrades K–2

Word Problem Keywords

Phrases in word problems and the operation or symbol they usually suggest. Always read the whole problem, since keywords are clues and not rules.

63 cardsGrades K–2, Grades 3–5, Grades 6–8