How to find the law How to find the law

How to find the law How to find the law


24÷6=4 (6 )÷3=( 2) ( 2)×5=(10 )



5,7,10,9,15,11,20,13 () () to find the law


25.15 analysis: from the first to the third and then to the fifth. The rule is to increase 5 each time, so the first bracket is 25, from the second to the fourth and then to the sixth. The rule is to increase 2 each time, so the second bracket is 15



15 10 13 10 11 10


15 13 11 odd