I'll do the first ten.
1, 3, 5, 7, 9, 11, 13, 15, 17, 19
The next ten are found by continuing to add two until you get to 39.
The first 20 odd numbers are: 13579111315171921232527293133353739.
The answer is 20*20 = 400
25
There are 20 odd numbers between 19 and 57
The difference is 2. (23 - 21 = 2).If we are talking about two odd numbers that come right after the number 20 then we mean the two consecutive odd numbers after 20.The difference between any consecutive odd numbers (or between any consecutive even numbers) is always 2.
The first 20 odd numbers are: 13579111315171921232527293133353739.
The last digit in the product of the first 20 odd natural numbers can be determined by looking at the pattern of the units digit in the multiplication of consecutive odd numbers. The units digit of the product of consecutive odd numbers alternates between 1 and 5. Since there are 10 odd numbers between 1 and 19, and 20 is also an odd number, the last digit in the product of the first 20 odd natural numbers is 5.
The answer is 20*20 = 400
It is 319830986772877770815625.
20 of them.
There are 20 odd numbers in 40.
There are 40 odd numbers between 20 and 100. Remember that an odd number is every second number. There are 80 numbers between 20 and 100, so there are 40 odd numbers and 40 even numbers.
There are 69 odd numbers between 20 and 158.
First odd number greater than 20 is 21 Last odd number less than 200 is 199 → number of odd numbers between 20 and 200 is (199 - 21) ÷ 2 + 1 = 90
how many odd numbers is there between 20 and 158
25
This can be found 2 ways: a) the long way 1+3+5+7+9+11+13+15+17+19= 100 or b) the twentieth odd number is 19. 1 +19 = 20, 3+ 17 = 20, etc. there are 5 pairs of this meaning five pairs of numbers that add up to 20. 5x20 = 100.