3rd Grade Common Core Math Practice
Numbers & Operations
3.NBT.1 Use place value understanding to round whole numbers to the nearest 10 or 100.
Place Value Puzzler
3.NBT.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Khan Academy Subtraction Video
Adding 2 digit numbers
Adding 3 digit numbers
Adding 4 digit numbers
CCSS Practice (online practice)
3.NBT.3 Multiply one-digit whole numbers by multiples of 10 in the range 10-90 using strategies based on place value and properties of operations.
Math Slot Machine
3.NF.2 Understand a fraction as a number on the number line; represent fractions on a number line diagram.
Kids and Cookies
3.NF.3 a-c Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.
LearnZillion Video Lessons 1-5
3.NF.3 d Compare two fractions with the same numerator or the same denominator by reasoning about their size. Recognize that comparisons are valid only when the two fractions refer to the same whole.
Operations and Algebraic Thinking
3.OA.1 -- Interpret products of whole numbers
Sheppard's Software: Multiplication Picnic
3.OA.2 -- Interpret whole-number quotients of whole numbers
Sheppard's Software: Fruit Shoot Division
3.OA.3: Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities.
Multiplication as repeated addition AAAMath
Multiplication arrays (interactive)
Multiplication arrays TeacherTube video
Division as repeated subtraction (ICT games)
Division as repeated subtraction AAAMath
3.OA.4 Determine the unknown whole number in a multiplication or division equation relating three whole numbers.
Math Squares - Addition & Multiplication
3.OA.5 Apply properties of operations as strategies to multiply and divide.
IXL Properties of Multiplication
IXL Solve using properties of Multiplication
IXL Relate Multiplication and Division
3.OA.6 Understand division as an unknown factor problem.
IXL Missing Factors Word Problems
3.OA.7 Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division or properties of operations.
Whole Numbers Multiplication: 0 to 9
Whole Numbers Multiplication: 0 to 99
Whole Numbers Multiplication: 0 to 144
Whole Numbers Multiplication Boxes
Whole Numbers Multiplication Blocks
Whole Numbers Division: 0 to 81
Whole Numbers Division: 0 to 99
3.OA.8 Solve two-step word problems using the four operations. Represent these problems using equations with a letter standard for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
3.OA.9 Identify arithmetic patterns and explain them using properties of operations.
Measurement and Data
3.MD.1 Tell and write to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes.
Bang on Time
ClockworksSheppard's Software: Oh Time (elapsed time)
Elapsed time: Memory Game
Elapsed time: Quiz
Johnnie’s Math Page
Just in Time
Stop the Clock
Telling Time to the Hour
Telling Time Video
Tick Tock Clock
What Time Is It?
3.MD.2 Measure and estimate liquid volumes and masses of objects using standard units of grams, kilograms, and liters. Add, subtract, multiply, or divide to solve one-step word problems involving masses or volumes that are given in the same units.
Math Chimp VideosAlien Cookbook
Johnnie’s Math Page
Shepard's Software: Best Measure
3.MD.3 Draw a scaled picture graph and a scaled bar graph to represent a data set with several categories. Solve one and two-step "how many more" and "how many less" problems using information presented in scaled bar graphs.
Create a Graph
What’s the Point?
3.MD.5 Recognize area as an attribute of plane figures and understand concepts of area measurement.
3.MD.7 Relate area to the operations of multiplication and addition.
a.Geometry: Area of rectangles
b.Geometry: Area of rectangles
d.Geometry: Area of complex figures (with all right angles)
3.MD.8 Solve real-world and mathematical problems involving perimeters of polygons.
Finding Perimeters of Parallelograms
Area and Perimeter
Funbrain Area and Perimeter
Internet for Classrooms Area and Perimeter
Adam Ant Perimeter
IXL Perimeter (Find the Missing Side)
IXL Grade 4 Perimeter
3.G.1 Understand that shapes in different categories may share attributes and that the shared attributes can define a larger category. Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.
Fact Monster Identifying Polygons
3.G.2 Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole.
IXL Fractions: Unit fraction review