# What Two Numbers Add Up To 21?

When two numbers are added together, the result is called a sum.

## What are two numbers that add to 21 and subtract to 7?

1 Answer. The numbers are 14 and 7 .

## What 4 numbers make 21?

Obtain 21 using the four numbers 1, 5, 6, 7 and any arithmetic operations ( +, -, *, / ). Notes: These are numbers, not digits; thus 15 + 6 is not a solution.

## What 3 numbers make 21?

The numbers 4, 8 and 9 add up to 21. 4 + 8 = 12, 12 + 9 = 21.

## What 3 numbers make 22?

Answer is 10. Also the other three numbers are 9, 8, and 5 which sum to 22. If these last three numbers are equal to 22, then you must add 10 to these three numbers to reach 32, the number when divided by 4 is 8.

## What two numbers add to 45?

Distinct Factors of 45 = 1, 3, 5, 9, 15, 45, Note: Factors of 45 and Distinct factors are the same.

## Is 21 prime or composite?

Definitionsfactors of 20:1 x 20, 2 x 10, 4 x 520 is compositefactors of 21:1 x 21, 3 x 721 is compositefactors of 22:1 x 22, 2 x 1122 is compositefactors of 23:1 x 2323 is primefactors of 24:1 x 24, 2 x 12, 3 x 8, 4 x 624 is composite5 more rows

## What 2 numbers have a sum of 15 and a difference of 7?

The sum of 2 numbers is 15 and the difference is 7. What is the answer? The smaller number = 7.5-3.5 or 4, and the larger number is 7.5+3.5 or 11. Answer.

## What can you add to get 15?

15 = 1 x 15 or 3 x 5. Factors of 15: 1, 3, 5, 15.

## What two numbers have a sum of 20 and a difference of 6?

What are the numbers? Answer: -4 and 2. Originally Answered: Two numbers have a difference of 6, the sum of their square is 20.

## What two numbers have a sum of 18 and a difference of 6?

“THE SUM OF two numbers is 18 and the difference is 6”. So x+y = 18 and x-y = 6. Algebraically, we can add those two equations to find 2x = 24, so x = 12. And then the other number must be 6.

## What number is half of 21?

10.5Answer and Explanation: Half of 21 is 10.5.

## What numbers can make 21?

Factors of 21: 1, 3, 7, 21.

## What 2 Numbers add up to 15?

But, there are only two single-digit numbers that add up to 15: 6 and 9, 7 and 8.

## What two numbers add to 18?

Factors of 18: The square root of 18 is 4.2426, rounded down to the closest whole number is 4. Testing the integer values 1 through 4 for division into 18 with a 0 remainder we get these factor pairs: (1 and 18), (2 and 9), (3 and 6). The factors of 18 are 1, 2, 3, 6, 9, 18.

## What two numbers have a sum of 20 and a difference of 4?

So, we can ask ourselves, what two numbers add up to 20 whose difference is 4. It should be easy to see we need 12 and 8. So the two numbers we need are -12 and 8.

## What 4 numbers add up to 28?

So to sum to 28 we have only the digits 9, 8, 6 and 5 and 9, 8, 7 and 4.

## What 3 numbers add up to 3?

When 7 is added to 3 the sum of digits is reduced to 1….NumberRepeating Cycle of Sum of Digits of Multiples3{3,6,9,3,6,9,3,6,9}4{4,8,3,7,2,6,1,5,9}5{5,1,6,2,7,3,8,4,9}6{6,3,9,6,3,9,6,3,9}8 more rows

## What are the numbers in subtraction called?

Formally, the number being subtracted is known as the subtrahend, while the number it is subtracted from is the minuend. The result is the difference.

## What can multiply to get 100?

What are the Factors of 100Factors of 100 =1, 2, 4, 5, 10, 20, 25, 50, 100.Distinct Factors of 100 = 1, 2, 4, 5, 10, 20, 25, 50, 100,Factors of -100 = -1, -2, -4, -5, -10, -20, -25, -50, -100,

## What 4 numbers add up to 13?

1. Add: 9 + 4 = ? The sum of 9 + 4 is 13.