My birthday party is tomorrow! Will you bring me cake? (Psst..there is cake at the end of the level)
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5th Grade skills

Number Sense
28
 Basic Comparison
 Tens and Ones Places
 Greater Than & Less Than
 Ordering Numbers
 Comparison and Ordering, to Two Hundred
 Rounding to the Nearest Ten
 Even and Odd Numbers
 Place Value Through Hundreds
 Comparing Numbers up to One Thousand
 Counting By Twos, Fives and Tens
 Patterns and Counting By Twos, Fives and Tens
 Review Place Value Below One Thousand
 Place Value Below Ten Thousand
 Comparing Numbers Below Ten Thousand
 Rounding
 Rounding and Estimation
 Place value through hundred thousands
 Place value through hundred millions
 Comparing whole numbers
 Rounding whole numbers
 Addition using commutative, associative, and zero properties
 Estimation for addition
 Estimation for subtraction
 Comparing Negative Numbers
 Probability
 Place Value Through Billions
 Place Value Through Thousandths
 Rounding Whole Numbers

Fractions, Mixed Numbers, And Decimals
29
 Fractional parts of a number
 Equivalent Fractions
 Simplest form
 Comparing Fractions
 Mixed Numbers
 Add and Subtract Fractions
 Fractions and decimals
 Mixed Numbers and Decimals
 Compare Decimals
 Compare Decimals to Fractions
 Round decimals
 Add and Subtract Decimals
 Mixed Numbers and Improper Fractions
 Equivalent Fractions
 Simplest Form
 Comparing Fractions
 Equivalent Fractions and Decimals
 Comparing Decimals, Fractions, and Mixed Numbers
 Equivalent Fractions
 Ordering Fractions
 Ordering Mixed Numbers
 Equivalent Fractions and Decimals
 Adding and Subtracting Fractions Review
 Adding Mixed Numbers Review
 Subtracting Mixed Numbers Review
 Multiplying Fractions and Mixed Numbers Review
 Dividing Fractions and Mixed Numbers Review
 Adding and Subtracting Decimals Review
 Multipling and Dividing Decimals Review

Algebra
22
 Expressions using parentheses
 Adding equals to both sides of an equation
 Evaluating expressions with all four operations
 Using variables and evaluating expressions using variables
 Order of Operations
 Expressions in Word Problems
 Equations with variables
 Distributive Property
 Commutative Properties of Addition and Multiplication
 Associative Properties of Addition and Multiplication
 Identity Properties and Multiplication by Zero
 Rounding Decimals
 Estimating decimal addition and subtraction
 Order of Operations Review
 Properties Review
 Algebraic Expressions
 Simplifying Algebraic Expressions
 Algebraic Formulas
 Solving Addition and Subtraction Equations
 Solving Multiplication and Division Equations
 Ratios
 Cross Products

Factoring And Multiples
14
 Factoring
 Multiples
 Factoring review
 Factors vs. Multiples
 Basic Exponents
 Prime Factorization and Exponents
 Prime and composite numbers
 Greatest Common Factors
 Prime and Composite Numbers Review
 Prime Factorization and Exponents Review
 Greatest Common Factors Review
 Greatest Common Factors of Three Numbers
 Least Common Multiples
 Least Common Multilpes of Three Numbers

Geometry
36
 Identify Solid Figures
 Identify Shapes
 Counting Sides and Vertices of Plane Shapes
 Counting Vertices, Edges, Faces
 Comparing Vertices, Edges, Faces
 Plane Shapes and Solid Figures
 Polygons
 Perimeter of Squares
 Perimeter of Shapes
 Area of Squares
 Area of Shapes
 Triangles
 Quadrilaterals
 Solid Figures
 Faces, Edges, Vertices
 Identify Solid Figures
 Polygon Review
 Lines, Line Segments, Rays
 Parallel, Perpendicular, Intersecting Lines
 Angles
 Triangles Review
 Quadrilaterals Review
 Circle Parts
 Congruence
 Angles Review
 Estimating Angles
 Parallel, Perpendicular, Intersecting Lines
 Triangles Review
 Triangle Angles
 Quadrilateral Angles
 Area of Triangles
 Area of Parallelograms and Trapezoids
 Volume of Cubes and Rectangular Prisms
 Surface area of Cubes and Rectangular Prisms
 Circumference of a Circle
 Area of a Circle

Adding And Subtracting Fractions And Mixed Numbers
8
 Adding and Subtracting Fractions with like Denominators
 Adding and Subtracting Fractions with unlike Denominators
 Adding Fractions with Sums Greater Than One
 Adding Fractions and Mixed Numbers
 Adding two mixed numbers
 Subtracting Mixed Numbers from Integers
 Subtracting mixed numbers with like denominators
 Subtracing Mixed Numbers with Unlike Denominators
 Multiplying And Dividing Fractions And Mixed Numbers 7
 Decimal Operations 8
 Other 6
5th Grade Math > Adding and Subtracting Fractions with unlike Denominators
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Stats
Points
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Streak
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Explanation for this problem
Level 1: Adding and Subtracting Fractions with unlike Denominators
Pick a monster to be your friend on your math journey!
I'm Toothie!
I'm scary, aren't I?
I'm the most scary monster ever  let's be friends!
I'm scary, aren't I?
I'm the most scary monster ever  let's be friends!
I'm Octo!
I like math. I like boys and girls who like math too!
I like math. I like boys and girls who like math too!
I'm Fuzz!
I give really big hugs! And you can ride me.
I give really big hugs! And you can ride me.
I'm Smiley!
I wish I had a more scary name. All monsters want to be scary.
I wish I had a more scary name. All monsters want to be scary.
I'm Pinky!
I was once told I was "cute". I've been sad ever since. Be my friend and I'll be happy!
I was once told I was "cute". I've been sad ever since. Be my friend and I'll be happy!
Map of Monster World (Level 1)
Monster store: Buy a mission or monster items
You have 500 points
Each mission you complete unlocks new ones!
Your monsters get new powers as they pass missions!
Birthday Cake!
Help your monster friend get cake on their birthday!
Rocket to the moon!
Help your monster go to the moon!
Halloween!
What do monsters dress up as on Halloween?
Unlock clothes as you go! Clothes you buy will appear on your monster!
All body parts are locked. Unlock as you go!
All transportation is locked. Unlock as you go!
Level 1: Adding and Subtracting Fractions with unlike Denominators
Birthday Cake  You got Step 1!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Level 1: Adding and Subtracting Fractions with unlike Denominators
Birthday Cake  You got Step 1!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Level 1: Adding and Subtracting Fractions with unlike Denominators
Birthday Cake  You got Step 1!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Level 1: Adding and Subtracting Fractions with unlike Denominators
Birthday Cake  You got Step 1!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Level 1: Adding and Subtracting Fractions with unlike Denominators
Birthday Cake  You got Step 1!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Guess what? It's my birthday party tomorrow!
I hear there's something called cake that boys and girls have on their birthday.
Could you bring some? Thank you!
Goal: get 1000 points to earn Step 2
Hint: Mastering new skills and earning badges get you the most points!
Hi, Parent  we're really cute but we're even more powerful!
A complete K6 math curriculum
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Created by graduates of Stanford, Harvard and Berkeley.
Used by over 1 million students in the United States.
Used by over 1 million students in the United States.