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Lesson 1: Division intro

# Visualizing division with arrays

Sal uses arrays to represent division expressions.

## Want to join the conversation?

• Can you multiply with arrays?
• Yes, you can.
number of rows x number of columns = Answer via arrays
• why do you need to learn division
• Honestly, I know Addition, Subtraction, Multiplication, and Division are all very important for life but I don't know myself.

• what I don't under stand
• For me arrays help me subtract
• Can you subtract with arrays
• yes you can.
(1 vote)
• PI =3.14159265 and that i all i can remember
(1 vote)
• how can you multiply with arays?
(1 vote)
• 20 ._-2 3 5
(1 vote)
• so what is 500x500= 2500?
(1 vote)
• Woah, almost there! 500 * 500 = 250,000.
There are 4 trailing zeroes total, not 3, in both the multiplying numbers.
So append 4 zeroes in front of the answer of 5*5 = 25.
= 25 0000 = 250,000