Convert to/from a Number - Tens and Ones
𧩠Break it apart and put it back together! You can pull a 2-digit number apart into "tens" and "ones" like taking apart a puzzle block.
Do this: Read the concept below, then try the quiz or activity.
Concept
A two digit number, like 47, is actually made of two puzzle pieces squished together.
π― Breaking it Apart (Expanded Form): * Look at the 4. It's in the "Tens" place. Four tens is really the number 40. * Look at the 7. It's in the "Ones" place. Seven ones is just the number 7! * Putting it together: 4 tens and 7 ones = 40 + 7 = 47.
π― Squishing it Together (Standard Form): If someone says "I have 8 tens and 3 ones," you just squish the numbers together! Put the 8 in the front, and the 3 in the back. * 8 tens and 3 ones = 83!
Try it
Put the puzzle together!
Instructions: Break the number apart, or squish it together!
Break it apart! 1. 52 = ___ tens and ___ ones 2. 89 = ___ tens and ___ ones 3. 20 = ___ tens and ___ ones
Squish it together! 4. 3 tens and 6 ones = ___ 5. 9 tens and 1 one = ___ 6. 1 ten and 4 ones = ___
Brain Bender: What is "0 tens and 8 ones"? ___