Ancient Egyptian numbers

Ancient Egyptian numbers

Learning Intention:  to understand place value by using Ancient Egyptian numbers.

Challenge:

What number is this? 23 Why? Because I think the 2 upside down u's are the place value of ten and that the 3 lines represents the 1's.

23

Some Ancient Egyptian numbers

	1
	10
	100

Challenge:

What are these numbers? 144 and 602

The twirly symbol represents 100's the upside down u's represents the 10's and the lines represent the 1's.

	144
	602
	379
	314
	636
	379
	379

What is the same about the last two numbers? The one thing that is the same with the two last two numbers is that they equal the same number.

What is different about the last two numbers? It's the same numbers but just not in order.

Challenge:

Change these numbers into Ancient Egyptian numbers. Insert a photo of your number written on a whiteboard.

7
42
220
608
795

Addition

Challenge:

Now try adding numbers. You cannot draw modern maths symbols like + and =.

7 + 5
36 + 15
274 + 418
593 + 109

Subtraction

Challenge:

Now try subtracting numbers. You cannot draw modern maths symbols like - and =.

12 - 3
23 - 17
445 - 152
623 - 249

What can you understand about Ancient Egyptian numbers compared to modern numbers?

Modern numbers use english numbers such as 2 12 23 and 4 but the ancient Egyptian numbers use symbols to do their numbers just like this. They have 3 symbols representing the place value columns. The straight line symbol is a 1 the upside down u is a 10 and the twirly symbol is the 100's.

LI: To understand place value by using Ancient Egyptian numbers. 

This week Mr Wong's maths group has been learning about Ancient Egyptian numbers. We had to use whiteboards to write the numbers. I have learnt one thing for writing Ancient Egyptian numbers is to make sure you dont use equals, addition, subtraction,and any other symbols on our Chromebooks.
I learnt this by figuring out how we write our numbers compared to the ancient numbers.
I first figured out what each ancient number meant on my work. The upside down u represents the 10's, the straight lines represents the 1's, and lucky last the twirly symbol represents the 100's of the place values.