Numbers in Base Ten
Look at the picture of the place value chart above.
Remember, the value of digits increase as you move to the left and the value of digits decrease as you move to the right.
Click HERE to play a game practicing the value of digits.
Click HERE to watch the video explaining Number Forms.
Standard Form: This is just the numbers
Expanded Form: This expands the number out to see more about the value of each digit.
Ex.: 5,432.8 = 5000 + 400 + 30 + 2 + 0.8
Word Form: This is how you would write it or say it. You read the number in periods, naming the periods each time.
Ex.: 912,733.82 = Nine hundred twelve thousand, seven-hundred thirty-three and
Multiplying Multi-Digit Numbers
Click HERE to watch a video explain how to use place value to help you multiply multi-digit numbers. ****** This is main way we learn it in class and is the most efficient way to solve multi-digit multiplication problems with the least amount of mistakes.
Click HERE to watch a video explaining the standard algorithm for multiplying mult-digit numbers.
Click HERE to watch a video explaining the area model from multiplying multi-digit numbers.