12. you're doing multiples of 3 and the tens and ones places are just reversed in the writing- 3 6 9 12 15 18 21=3 6 9 21 51 81 12
481
57 36 +1 = 37 37 +2 = 39 39 +3 = 42 42 +4 = 46 46 +5 = 51 51 +6 = 57
31
area 51
84
3411
481
the next prime number after 51 is 60 :)
51. Just add two to an odd number to work out the next ;)
It seems that each number is alternately one less and one more than twice the previous number.
21/4 = 51/4
The next whole number or integer is 51
31 is a prime number.
write these numbers in order start with the smallest 1.96 1.54 0.87 6.80 4.43
57 36 +1 = 37 37 +2 = 39 39 +3 = 42 42 +4 = 46 46 +5 = 51 51 +6 = 57
31
31