What do the first 4 digits add up to?

What do the first 4 prime numbers add up to?

What do the first 4 multiples of 6 add up to?

What do the first 4 multiples of 15 add up to?

What do the 4 factors of 34 add up to?

Starting with the number 100 double it, add 100 divide by 10 and then subtract 20.

Starting with the number 10 triple it, add 30 divide by 20 and then subtract 2.

Starting with the number 6 times it by itself, double the answer add 28 divide by 25 and subtract 4

Starting with the number 8 divide it by 8 subtract 8 double it then add 15

Starting with the number 3 multiply it by itself then multiply the answer by itself, divide by 3, add itself and add 46