55 and its multiples. 1, 5, and 55 are all in both the 5 times and 11 times tables.
all of the numbers in the 15 times tables and 3 and 5
The six times tables are any and all multiples of 6. Therefore, any numbers that divide evenly by 6 will be in the six times tables, and any that don't won't be. 90/6 = 15, and so 90 does divide evenly by 6. Thus, 90 is in the six times tables.
7
All numbers that are multiples of three. This is an infinite number of numbers.
55 and its multiples. 1, 5, and 55 are all in both the 5 times and 11 times tables.
all of the numbers in the 15 times tables and 3 and 5
The six times tables are any and all multiples of 6. Therefore, any numbers that divide evenly by 6 will be in the six times tables, and any that don't won't be. 90/6 = 15, and so 90 does divide evenly by 6. Thus, 90 is in the six times tables.
2: 2,4,6,8,10,12,14,16,18,20...4: 4,8,12,16,20,24,28,32,36,40...Half of all numbers divisible by 2 are divisible by 4.All numbers divisible by 4 are divisible by 2.
God
7
All numbers that are multiples of three. This is an infinite number of numbers.
Since 6 is a multiple of 3, all of the numbers in the 6 times table will be contained in the 3 times table.
The 4's times tables can be determined by taking 4 times all numbers, as high as you would like to go for the table size. For example 4x1=4, 4x2=8, 4x3=12, and so on until you get the desired amout of products for the table.
Whan I went to school (Decades ago) we had the 12 times tables we went from 1 x1 = 2. 1 x 2 + 2 and all the way through the numbers multiplying each number by 1 and right up to 12 I guess the 22 times tables are like that except they go from 1 up to 22.
18 times 50 is 90
Wikipedia.org has useful tables of primes.