Place Value hats. Each hat has one label. Ones, tens, hundreds, thousands, hundred thousands, decimal point, tents, hundredths, thousandths etc. Go as far as you need. Each child wears a hat and hold one digit. Can be used to show hoe to multiply or divide by 10, 100, 1000 etc. Make big and small numbers. Secure place value knowledge. I used basic party hats. Post it notes. Sharpie pen. Shire seal.