9 Jim issaving money to buy a car He puts 620 in thc bank
jn the first weck. then 625 in the second week then 630
the third week。 and so on.
s How much will Jim put into he bank in the 10h
week?
5 How much money will Jim have saved in total aer
20 wecks?
Thc amangcment of numbens alongside is called a 3 x 3 magie
square. The numbers from 1 to 9 are placed so that the numbers
jm cach row column and main diagonal all add up to the same
number known as the magic constant Fora3x3 magic square。
the magic constant is 15.
An xn magic squarc contains the numbcrs from 1 to 2.
き Find. in tems of thc magic constant for an nx magic
Square」
も Check that your fommula is comect for nニ8.
で Find the magic constant for an 8 x 8 magic square.
