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Lesson 3: Area formula intuition

Area with partial grids

Explore the concept of finding area with partial arrays. Learn how to determine the area of partial rectangles by completing the rectangle with lines, similar to a grid. Created by Sal Khan.

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• What is 183 plus 285? Solomon.
(1 vote)
• When there are high digits, there are often good tricks.

183 is just 20 less than 203.
So we can add 203 + 285 to get 488, then subtract 20 to get 468.

Have a blessed, wonderful day!
• i refuse to believe these comments r from actual humans
• Day 1 of commenting
how is geometry dash 2.2 so close
(1 vote)
• guys this is easy, we learned this in like 1st grade.
(1 vote)
• Why are these so long?It takes so much time that i could be doing a activity!
(1 vote)
• i do not know.