Addition	Subtraction	Multiplication	Division	Square root
10 12 3+9	10 3 7-4	10 9 9x1	10 9/0	10 2 root of 4?
50 149 54+95	50 31 95-64	50 3760 80x47	50 2R10 50/20	50 3 Root of 9
100 1780 854+926	100 324 856-532	100 497280 555x896	100 350 700/2	100 6 Root of 36
300 18007 8454+9553	300 2980 9564-6584	300 529937 9x58993	300 1500 4500/3	300 10 Root of 100
500 159492 85538+73954	500 94655-85852 8803 94655-85852	500 45180761 89x507649	500 555.5 5555/10	500 2.236 Root of 5

Math

How many teams are playing ?
Time given to answer each question ?