Contents

## What numbers can add up to 16?

4 is a factor of 16 because 4 x 4 = 16. Also 1 and 16 are factors of 16 because 1 x 16 = 16. The factors of 16 are 1, 2, 4, 8, 16.

## What 3 numbers can add up to 18?

Three prime numbers that add to 18 are 2, 5, and 11 or 2, 3, and 13.

• 2 + 5 + 11 = 18.
• 2 + 3 + 13 = 18.

## How many ways can you add 3 numbers?

We see that 12 can be written as the sum of seven different groups of three distinct positive integers. Each of these seven groups can be written in 3! = 6 different ways. Therefore, the total number of ways 12 can be written as a sum of three distinct positive integers is 6 × 7 = 42 ways.

## What two numbers added together equal 16?

2 x 8 = 16. 4 x 4 = 16. 8 x 2 = 16.

## What two numbers have a sum of 16 and a difference of 6?

the numbers are 5 and 11.

## What two numbers add to 18?

The answer is 10 and 8. First we can think of all the numbers that can add to 18.

## What numbers can you multiply together to get 72?

Here we can see all the Positive pair factors of 72.

• x 72= 72. therefore, 1 and 72 are a factor pair of 72.
• x 36= 72. therefore, 2 and 36 are a factor pair of 72.
• x 24= 72. therefore, 3 and 24 are a factor pair of 72.
• x 18= 72.

## How many 3 digit multiples of 18 have the sum of the digits equal to 18?

25 three-digit multiples of 18 have the sum of the digits which also equal 18.

## How do I add up to 14?

Here’s a few combinations that work: 1 and 13 works, since 1 + 13 = 14. Also 7 and 7, since 7 + 7 = 14. There are other combinations which add up to 14.