Convert from expanded form - up to thousands

Learning Objectives Identify the hundreds, tens, and ones parts in an expanded number sentence. Combine the parts of an expanded form to write a standard 3-digit number. Combine the parts of an expanded form to write a standard 4-digit number. Correctly place a zero as a placeholder when a place value is missing. Read an expanded number like 500 + 30 + 4 and say the standard number 'five hundred thirty-four'. Explain that expanded form shows the value of each digit. Imagine you have 3 piles of toy cars! 🚗 One pile has 200 cars, another has 40, and the last has 5. How many cars do you have in all? We will learn how to take stretched-out numbers and put them back together. It's like being a number detective! 🕵️‍♀️ This helps us understand big numbers better....

TermDefinitionExample Expanded FormA way to write a number by showing the value of each digit. It's like stretching a number out! 🤸The number 345 in expanded form is 300 + 40 + 5. Standard FormThe normal way we write a number using just digits. It's the short and simple way! 👍The standard form for 300 + 40 + 5 is 345. DigitA single symbol used to make numbers. We have ten digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. 🖐️In the number 582, the digits are 5, 8, and 2. Place ValueThe value of a digit based on its position in a number. It tells us if it's ones, tens, or hundreds. 🏠In 761, the 7 is in the hundreds place. It means 700. Placeholder ZeroA zero that holds a place when there are no tens or ones. It's a very important hero! 🦸In 408, the 0 holds the tens place. It mean...

3-Digit Number Building Rule Hundreds + Tens + Ones = Standard Number Look at the first digit of each part. Put them together in order to make the standard number. 4-Digit Number Building Rule Thousands + Hundreds + Tens + Ones = Standard Number Just like with 3-digit numbers, you put the first digit of each part together in order. The Hero Zero Rule Hundreds + Ones = H0T (Hundreds, 0 Tens, Ones) If a place is missing (like tens), you must put a zero there to hold its spot.