gasilgator.blogg.se

1. #Babylonian numerals plus
2. #Babylonian numerals download

But the representation of two has the two ones touching, while the representation for sixty one has a gap between them.

#Babylonian numerals plus

You can now see why they piled the units up into neat piles! They needed to distinguish one plus one or two, from one times sixty plus one meaning sixty one. So the left-hand column were units, the second, multiples of 60, the third, multiplies of 3,600, and so on. The Babylonians had the same system, but they used powers of sixty rather than ten. Then you can add each column, carrying forward to the next, if necessary. If you want to add large numbers (and you've lost your calculator!) you line the numbers up so their units are in the same column. So the right hand column is units, the next is tens, the next is hundreds, and so on. We use a positional system, and our columns represent powers of ten. Were working their way towards a positional system (see below).Ī positional number system is one where the numbers are arranged in columns. Surely this is very confusing! However, the Babylonians Sixty one is sixty and one, which therefore looks Eleven was ten and one, twelve was ten and one and one, twenty was tenĪnd ten, just like the Egyptians. Were too many symbols, so they turned the stylus on its side to make a different They tended to arrange the symbols into neat piles. Ones to represent two, three ones for three, and so on, up to nine. Like the Egyptians, the Babylonians used two

I am using a yellow background to represent the clay!Įnter a number from 1 to 99999 to see how the Babylonians would have written it, or enter a number to count with. This explains why the symbol for one was not just a single line, like most systems. The Babylonians writing and number system was done using a stylus which they dug into a clay tablet. It is quite a complicated system, but it was used by otherĬultures, such as the Greeks, as it had advantages It was developed from a number system belonging to a much older civilisationĬalled the Sumerians. Worksheet - drawings of multiplication problems, one involving simple fractions, on two Babylonian tables to decipher.The Babylonian number system is old. Worksheet - students will need to know about multiplication and fractions in base 60 Learning to multiply - the Babylonian way Worksheet - this follows on from Numbers in base 60 Worksheet - to follow-up the presentation Presentation - working with numbers in base 60 Worksheet - area of squares and triangles (counting squares is fine for this), symmetry, investigation Presentation - make your own Babylonian tablet, complete with Babylonian numbers. You will need to work in cubits to start with! Worksheet - do a scale drawing of a Babylonian house or see how the area of a Babylonian house compares with a modern one by finding rectangular areas. If there was a fire or an earthquake tonight and your classroom was destroyed, what would a maths archaeologist find? What might s/he think about your maths class? Video clip 1: Introductory video clip (1 min 47 secs)

#Babylonian numerals download