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### Course: Arithmetic>Unit 5

Lesson 1: Intro to place value through 1,000

# Use place value blocks to show numbers within 1,000

Sal uses place value blocks to represent numbers within 1000. Created by Sal Khan.

## Want to join the conversation?

• So the big one are 100?
• Yes, a matrix with 10 rows and 10 columns. 10x10 = 100
• are the cubes 1000?
• Yes, a 10×10×10 cube consists of 1,000 1×1×1 cubes.
• should we always count the hundreds blocks?
(1 vote)
• How many hundreds are there in 1000?
• well if you divide 1000 by 100
1000/100 = 10.... an easy way to think of it is that when you multiply by 10 or 100 or 1,000 or 10,000 etc... however many zeros there are then that is how many you add to the number being multiplied (or you could say the decimal moves to the right that many times)
EX: 9 * 10 = 90 9 * 100 = 900 etc... and it is the opposite for division in division the decimal moves to the left so...
EX: 90 / 10 = 9 900 / 100 = 9 and so on, so forth!
Hope this Helped!
• is there a 1000
• Yes. that would be 10 x 10 x 10
(1 vote)
• So the blocks in the middle are 10?