Texas Instruments
Texas Instruments: It's the Place That Counts
Students learn to add using place-value material and a calculator. They make connections between base-ten numerals and the quantities they represent.
CK-12 Foundation
Ck 12: Elem Math: Turning Words Into Numbers Using a Place Value Diagram
[Free Registration/Login may be required to access all resource tools.] The interactive PLIX resource allows students to manipulate base ten blocks to observe how changing the value of each type of block affects the total, including...
Illustrative Mathematics
Illustrative Mathematics: Tenths and Hundredths
The purpose of this task is for students to explore the relationship between tenths and hundredths (as well as the relationship between tens and hundreds).
Illustrative Mathematics
Illustrative Mathematics: The Value of Education
The purpose of this task is for students to add, subtract, multiply, and divide decimal numbers in a real-world context. The weekly income earned by each person in the task is the median weekly income for their education level, but they...
Mangahigh
Mangahigh: Number: Multiply and Divide Decimals by 10, 100, 1000
This site provides students practice with the concept of multiplying and dividing decimals . Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
ABCya
Ab Cya: Base Ten Fun
Base Ten Fun is an educational virtual manipulatives activity for kids learning place value, addition and subtraction. Base Ten Fun is highly customizable; kids can select from ones, tens and hundreds.
Math Is Fun
Math Is Fun: Number Bases
While our number system is based on the number 10, there are many other possible ways to organize a number system, which are explored here.
Illustrative Mathematics
Illustrative Mathematics: Rounding to Tenths and Hundredths
The purpose of this task is for students to use the position of a number on the number line to round the number without knowing its exact value. Though this task deals most directly with rounding, it also requires students to understand...
TOPS Learning Systems
Top Science: Decimal Bounce [Pdf]
An activity where students learn the meanings of metric prefixes, and how to use them with decimal numbers and with different units of measurement.
Saddleback College
Algebra2go: Addition Using an Abacus Problem Sets
This resource contains three problem set for practcing addition using Abacus worksheet. Select a problem set, then select a question. Fill in the blank with the correct answer for each problem. When you have answered all of the...
Illustrative Mathematics
Illustrative Mathematics: What Makes a Teen Number?
Learners will learn about teen numbers by understanding the base-ten structure of teen numbers. They will fill-in a 10-frame and a blank equation as they complete the activity. Worksheet included.
Illustrative Mathematics
Illustrative Mathematics: Choral Counting
Using base ten blocks, students will develop the concept of ten more and ten less, moving from concrete representation to understanding of the unit of ten within ten more and ten less. Included is a detailed lesson plan with many...
Study Pad
Splash Learn: Common Core Math Standards 1.nbt.2.c
[Free Registration/Login Required] Learn the tens by choosing the correct answer in this game. Each question shows you a base-ten model and you choose which number it represents.
Purple Math
Purplemath: Number Bases: Introduction & Binary Numbers
The process of converting between different number bases is actually fairly simple, but the thinking behind it can seem a bit confusing at first. And while the topic of different bases may seem somewhat pointless to you, the rise of...
PBS
Pbs Learning Media: Fresh Pick Challenge: Logical Lunch
By using their deductive reasoning skills, children can help Henry and Avril pack a perfect picnic lunch. This activity will provide them with ways to use clues to solve a problem, group objects based on several attributes, and...
PBS
Pbs Kids: Curious George: High Five
Use this game resource to help children make some great art with George. Monkey-hand painting: what better way to learn how to count by fives!
Better Lesson
Better Lesson: Dealing With Decimal Models
Sixth graders model decimals using decimal grids, base 10 blocks, and number lines.
Shodor Education Foundation
Shodor Interactivate: Number Base Clocks
Visually explore counting and place value with different number bases, from base 2 to base 16, and up to the hundreds place using a clock like interface. The activity also allows you to look at the numbers on the clock in base 10 or in...
Shodor Education Foundation
Shodor Interactivate: Number Base Clocks
Introduces learners to the concept of base ten and how to use other base number systems.
E-learning for Kids
E Learning for Kids: Math: Sheep Farm: 3 Digit Numbers
Help Jack on his sheep farm and learn more about 3-digit numbers.
Science Struck
Science Struck: How to Convert Octal to Decimal
Explains what the four different types of number systems are and what they are used for. Presents the formula used to convert octal numbers into decimals and models how to apply it in two example problems.
ICT Games
Ict Games: Shark Pool Place Value
Practice your two-digit place value skills here. Just press the "go" button and find the number on the right that is represented by the base ten blocks on the left.
ICT Games
Ict Games: Life Guard
See how many people you can rescue. Click the number of tens and ones you need to move down the number line to the rescue. When you get there click the life preserver and then watch your rescue numbers add up.
Math Aids
Math Aids: Place Value Worksheets
Great resource to practice and strengthen math skills pertaining to place value. Math worksheets are printable, may be customized, and include answer keys.