Khan Academy: Understanding Place Value When Adding Tens

Work on place value and addition. Here is a resource that features different types of problems for your second graders to solve. After studying the example at the top of the page, they write the missing number in 12 addition problems....

Your fourth graders can write smaller numbers, but what about five-digit numbers? Practice writing expanded forms of large numbers with these activities. They work on place value skills, as well as written numbers. A great activity to...

As an overview of place value involving numbers in the hundreds, this resource would be incredibly beneficial. There are only a few examples, but the graphics make this concept come alive. In a lower grade classroom, this presentation...

Having a good number sense is key to understanding place value. This video clearly explains the place values that comprise a decimal number. It is a very straight forward presentation and would be appropriate for grades 3, 4, or 5. Sal...

Khan Academy assists your learner in grasping the concept of Place Value. Students will break down the number 4356 as 4 thousands + 3 hundreds + 5 tens + 6 ones, and then labels the number by place value. This video would be most helpful...

Viewing this Khan Academy video helps with grasping the concept of Place Value. Learners write the word six hundred forty-five million, five hundred eight-four thousand, four hundred sixty-two in standard form, using multiplication as a...

Watch as Sal adds 37 + 2 by thinking about place value. [2:35]

Demonstrates how to add two 2-digit numbers, with no regrouping, using drawings of base ten cubes to represent 1s and 10s. [3:16]

Demonstrates how to add 37 + 2 using drawings of base ten cubes to represent 1s and 10s. [2:36]

Looking at large numbers can intimidate many young mathematicians. Use Zoe's place value machine to help learners understand the meaning behind each digit in a whole number. After learning about the ones, tens, and hundreds places,...