Practice place value with Base Ten Blocks.
This app has two modes; an explore mode where you can see the relationship between place value and base ten blocks and a test mode where you are given a number and you have to fill in the places with the correct number of blocks.
Thousands, hundreds, tens and ones are used in the app but you can change the test mode to which place value suits the needs of your learner.
As you drag the blocks into place it will automatically update them when you hit ten. So ten ones will become a ten block and shift into the correct position.
This is an invaluable teaching tool as well as a great student testing tool.
