Complete the following activity to find the sum of natural numbers between `1` to `140` which are divisible by `4`.

Find the sum of all natural numbers between 1 and 145 which are divisible by 4.

Find the sum of all natural numbers between 1 and 100, which are divisible by 3.

Find the sum of all natural numbers between 1 and 100, which are divisible by 2 or 5

Complete the following activity to find the natural numbers between 1 and171 which are divisibleby 5. The natural numbers between 1 and171 divisible by 5 are 5,10,15, …,170. Here, a = square, d = square, t_(n) = 170 t_(n) = a + ( n -1) d :. 170 = 5 + ( n -1) xx 5 :. 170 = square n = square

Find the sum of all numbers between 200 and 400 which are divisible by 7.

What is the sum of all natural numbers between 100 and 400 which are divisible by 13?

Find the sum of all natural numbers between 250 and 1000 which are exactly divisible by 3 .