Addend Calculator

Welcome to the Addend Calculator, which is used to calculate what number should be added from one number to another number. For example, What number should be added to 19 to get a sum of 96?

a + ? = b

Eg, What number should be added to 19 to get a sum of 96? Enter 19 in the first input box and enter 96 in the second input box, then click Calculate button.

Calculate Reset

How to calculate the number that should be added?

According to the addition formula

Addend + Addend = Sum

So, to calculate the addend, just subtract the other addend from the sum. The formula is as follows:

Addend = Sum – Addend

For example, What number should be added to 19 to get a sum of 96?

The sum is 96, one addend is 19. So, the other addend is

Addend = Sum – Addend = 96 – 19 = 77

19 add 77 to get a sum of 96.

Verify

19 + 77 = 96

Correct.

The whole process is simple. If you hate manual calculations, it is recommended to use the Addend Calculator on the page directly, enter the number and you can get the answer immediately.

Next, we will introduce how to use the calculator.

How to use the addend calculator

Using the calculator is simple, follow these 3 steps:

1Enter the addend in the first input box.
2Enter the sum in the second input box.
3Click Calculate button to get the answer, or click Reset button to start a new calculation.

Next, let’s look at some examples.

Solved examples using the addend calculator

Example 1: What number should be added to 9008 to get a sum of 9999?

Enter 9008 in the first input box.

Enter 9999 in the second input box.

Then click Calculate button, as shown in the figure, the answer is 991. 9008 add 991 to get a sum of 9999.

9008 + 991 = 9999

What number should be added to 9008 to get a sum of 9999?

Example 2: What number should be added to -16 to get a sum of 58?

Enter -1/6 in the first input box.

Enter 5/8 in the second input box.

Then click Calculate button, as shown in the figure, the answer is 19/24. -16 add 1924 to get a sum of 58.

-16 + 1924 = 19 – 424 = 1524 = 58

What number should be added to -1/6 to get a sum of 5/8?

Addend Calculator - What Number Should be Added