Arcademics
Arcademics: Tandem Turtles
Multiplayer math game where turtle teams on skateboards race by rounding whole numbers to the nearest 10's place value.
Arcademics
Arcademics: Space Jaunt
Multiplayer math game where alien spaceships race by rounding whole numbers to the nearest 10's place value.
The Math League
The Math League: Fractions
This tutorial covers all types of fractions with simple explanations on how to work with them.
Math Open Reference
Math Open Reference: Integers
Learn about integers with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
Khan Academy
Khan Academy: Approximating With Powers of 10
Practice comparing two real-world quantities by approximating them using rounding and powers of 10. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Khan Academy
Khan Academy: Addition Using Groups of 10 and 100
In this exercise, students practice addition using groups of 10 and 100. Students receive immediate feedback and have the opportunity to get hints, watch a video tutorial, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2...
Hopelink
Hopelink: Teaching Percentages
Students can brush up on percentage skills with this lesson and calculate percentages using the "Percent Tricks method." For students to successfully use this method, they must have the ability to multiply and divide whole numbers.
Khan Academy
Khan Academy: Whole Numbers in Written Form Review
Presents an example of a number converted into its expanded place value form and its word form. Includes several practice questions along with explanations of solutions.
Khan Academy
Khan Academy: Round Decimals Challenge
Round decimals using number lines. Select numbers that round to a given value. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Round Decimals
Round decimals and whole numbers to the nearest thousand, hundred, ten, one, tenth, or hundredth. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Shodor Education Foundation
Shodor Interactivate: Lesson: Area
This lesson plan helps students explore the mathematical concept of area and features resource links to further learning. CCSS.Math.Content.3.MD.C.7.a Find the area of a rectangle with whole-number side lengths by tiling it
Soft Schools
Soft Schools: Estimation Word Problem Quiz
This word problem quiz will require you to make estimations based on the given information.
Illustrative Mathematics
Illustrative Mathematics: N q.a.3: Calories in a Sports Drink
The goal of the task is to stimulate a conversation about rounding and about how to record numbers with an appropriate level of accuracy, tying in directly to the standard N-Q.3. Aligns with N-Q.A.3.
Khan Academy
Khan Academy: Place Value When Multiplying and Dividing by 10
Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
PBS
Pbs: Who Won?: Comparing Decimals to the Thousandths Place
To figure out who won the race you have to compare their times. This interactive exercise focuses on using what you know about ordering decimals, number lines and rounding to the tenths place and then asks you to think about what numbers...