Pre-algebra Math Mission

The Arithmetic and pre-algebra Math Mission is a set of skills on Khan Academy. This mission consists of foundational material and then proceeds into many topics.

Mission Foundations

 * 1) Count to 100
 * 2) How many objects 1
 * 3) Making five
 * 4) Compare groups through 10
 * 5) Addition within 5
 * 6) Comparing numbers through 10
 * 7) Teen numbers 1
 * 8) Counting objects
 * 9) Understanding 2-digit numbers
 * 10) Addition within 1000
 * 11) Multiplying 1-digit numbers
 * 12) Subtraction within 1000
 * 13) Basic division
 * 14) Whole numbers on the number line
 * 15) Understanding area
 * 16) Rounding to the nearest ten or hundred
 * 17) Multiply by tens
 * 18) Meaning of multiplication
 * 19) 1-digit division
 * 20) Perimeter 2
 * 21) Properties of multiplication
 * 22) Solving basic multiplication and division equations
 * 23) Meaning of division
 * 24) Relate division to multiplication
 * 25) Comparing fractions with the same denominator
 * 26) Comparing fractions with the same numerator
 * 27) Two-step word problems with addition, subtraction, multiplication, and division
 * 28) Math patterns 1
 * 29) Finding area by multiplying
 * 30) Multiplication without carrying
 * 31) Multiplying 4 digits by 1 digit with visual models
 * 32) Multi-digit division without remainders
 * 33) Multiplication with carrying
 * 34) Multiplying 2 digits by 2 digits with area models
 * 35) Division with remainders
 * 36) Multiplying 2 digits by 2 digits
 * 37) Multi-step word problems with whole numbers
 * 38) Comparing with multiplication
 * 39) Multiplication and division word problems
 * 40) Understanding multiplying fractions and whole numbers
 * 41) Using fractions to divide pizzas, pies, and cakes
 * 42) Unit sense
 * 43) Converting to smaller units
 * 44) Multiplying and dividing whole numbers by powers of 10
 * 45) Graphing points
 * 46) Comparing volumes with unit cubes
 * 47) Multiplying and dividing decimals by powers of 10
 * 48) Understanding multiplying fractions by fractions
 * 49) Multi-digit multiplication
 * 50) Division by 2 digits
 * 51) Converting units
 * 52) Converting units word problems
 * 53) Identifying parts of expressions
 * 54) Writing expressions
 * 55) Writing expressions 2
 * 56) Representing ratios
 * 57) Multi-digit division
 * 58) Evaluating expressions in one variable
 * 59) Mean, median, and mode
 * 60) Evaluating expressions in 2 variables
 * 61) Evaluating expressions with variables word problems
 * 62) Percentage word problems 1
 * 63) Understanding addition and subtraction on the number line
 * 64) Rate problems 1
 * 65) Understanding addition and subtraction with negative numbers
 * 66) Rules for multiplying and dividing negative numbers
 * 67) Measurement precision

Negative numbers and absolute value

 * 1) Negative numbers on the number line
 * 2) Negative numbers on the number line without reference to zero
 * 3) Ordering negative numbers
 * 4) Number opposites
 * 5) Adding negative numbers
 * 6) Adding and subtracting negative numbers
 * 7) Interpreting negative numbers
 * 8) Multiplying and dividing negative numbers
 * 9) Finding absolute values
 * 10) Comparing absolute values
 * 11) Interpreting absolute value
 * 12) Constructing and interpreting absolute value

Factors and multiples

 * 1) Divisibility tests
 * 2) Divisibility intuition
 * 3) Factor pairs
 * 4) Identifying factors and multiples
 * 5) Prime numbers
 * 6) Composite numbers
 * 7) Prime factorization
 * 8) The fundamental theorem of arithmetic
 * 9) Divisibilty
 * 10) Least common multiple
 * 11) Greatest common factor

Decimals

 * 1) Writing and interpreting decimals
 * 2) Comparing decimal place value
 * 3) Money and decimal place value intuition
 * 4) Regrouping decimals
 * 5) Decimals on the number line 1
 * 6) Decimals on the number line 2
 * 7) Decimals on the number line 3
 * 8) Comparing decimals 1
 * 9) Comparing decimals 2
 * 10) Ordering decimals
 * 11) Adding decimals 0.5
 * 12) Adding decimals 1
 * 13) Adding decimals 2
 * 14) Subtracting decimals 0.5
 * 15) Subtracting decimals
 * 16) Subtracting decimals 2
 * 17) Adding and subtracting decimals word problems
 * 18) Multiplying decimals 1
 * 19) Multiplying decimals 2
 * 20) Dividing completely
 * 21) Dividing decimals 1
 * 22) Dividing decimals 2
 * 23) Dividing decimals 3
 * 24) Dividing decimals 4
 * 25) Converting fractions to decimals
 * 26) Converting decimals to fractions 1
 * 27) Converting decimals to fractions 2
 * 28) Converting decimals to percents
 * 29) Converting percents to decimals
 * 30) Finding percents
 * 31) Discount, tax, and tip word problems
 * 32) Markup and commission word problems
 * 33) Rounding decimals
 * 34) Significant figures
 * 35) Fractions as division by 10 or 100
 * 36) Understanding moving the decimal
 * 37) Adding and subtracting negative fractions, decimals, and percents

Fractions

 * 1) Recognizing fractions 1
 * 2) Identifying numerators and denominators
 * 3) Fractions on the number line 1
 * 4) Visualizing equivalent fractions
 * 5) Fractions cut and copy 1
 * 6) Simplifying fractions
 * 7) Equivalent fractions
 * 8) Equivalent fractions 2
 * 9) Comparing fractions with the same numerator or denominator
 * 10) Comparing fractions with different numerators and denominators
 * 11) Ordering fractions
 * 12) Decomposing fractions
 * 13) Adding fractions with 10 and 100 as denominators
 * 14) Adding fractions with unlike denominators
 * 15) Subtracting fractions with unlike denominators
 * 16) Adding and subtracting fractions with unlike denominators
 * 17) Adding fractions with common denominators
 * 18) Subtracting fractions with common denominators
 * 19) Adding and subtracting fractions with like denominators word problems
 * 20) Adding and subtracting fractions with unlike denominators word problems
 * 21) Multiplying fractions by whole numbers
 * 22) Multiplying positive fractions
 * 23) Multiplying positive and negative fractions
 * 24) Fraction multiplication as scaling
 * 25) Multiplying fractions and whole numbers word problems
 * 26) Multiplying fractions by fractions word problems
 * 27) Converting mixed numbers and improper fractions
 * 28) Fractions on the number line 2
 * 29) Comparing fractions and mixed numbers
 * 30) Fractions cut and copy 2
 * 31) Positive and negative fractions on the number line
 * 32) Adding and subtracting mixed numbers with like denominators
 * 33) Adding and subtracting mixed numbers with unlike denominators
 * 34) Multiplying mixed numbers
 * 35) Converting fractions to decimals
 * 36) Converting decimals to fractions 1
 * 37) Converting decimals to fractions 2
 * 38) Writing fractions as repeating decimals
 * 39) Understanding fractions as division
 * 40) Dividing fractions by whole numbers
 * 41) Dividing whole numbers by fractions
 * 42) Division with fractions and whole numbers word problems
 * 43) Understanding dividing fractions by fractions
 * 44) Dividing positive fractions
 * 45) Dividing positive and negative fractions

Ratios, proportions, units and rates

 * 1) Ratio word problems
 * 2) Solving ratio problems with tables
 * 3) Rate problem 0.5
 * 4) Rate problems 2
 * 5) Units

Applying mathematical reasoning

 * 1) Reading stem and leaf plots
 * 2) Reading pictographs 1
 * 3) Reading pictographs 2
 * 4) Reading bar charts 1
 * 5) Creating bar charts
 * 6) Reading bar charts 2
 * 7) Reading bar charts 3
 * 8) Multi-step rational number word problems
 * 9) Comparing whole numbers
 * 10) Writing numerical inequalities
 * 11) Using inequalities to describe real-world contexts
 * 12) Inequalities on a number line
 * 13) Math patterns 2
 * 14) Visualizing and interpreting relationships between patterns
 * 15) Expressions with parentheses
 * 16) Creating expressions with parentheses

Exponents, radicals, and scientific notation

 * 1) Positive and zero exponents
 * 2) Positive exponents with positive and negative bases
 * 3) Positive and zero exponents with positive and negative bases
 * 4) Square roots of perfect squares
 * 5) Estimating square roots
 * 6) Simplifying square roots
 * 7) Simplifying square roots 2
 * 8) Adding and subtracting radicals
 * 9) Cube roots
 * 10) Cube roots 2
 * 11) Using exponent rules to evaluate expressions
 * 12) Properties of exponents
 * 13) Positive and negative exponents
 * 14) Scientific notation intuition
 * 15) Scientific notation
 * 16) Patterns in zeros
 * 17) Orders of magnitude
 * 18) Multiplying and dividing scientific notation
 * 19) Computing in scientific notation

Arithmetic properties

 * 1) Place value
 * 2) Understanding place value
 * 3) Rounding whole numbers
 * 4) Understanding whole number representations
 * 5) Regrouping whole numbers
 * 6) Recognizing rational and irrational numbers
 * 7) Approximating irrational numbers
 * 8) Order of operations
 * 9) Order of operations with negative numbers
 * 10) Distributive property

Measurement

 * 1) Measuring area with unit squares
 * 2) Area problems
 * 3) Perimeter 1
 * 4) Finding perimeter
 * 5) Volume with unit cubes 1
 * 6) Volume 1
 * 7) Volume word problems

Check out other Math Missions here!