Question

When adding 43.8 to a certain number, the sum is 46.59, as seen below. What number should go in the box to complete the addition problem? The decimal 43.8 is added to an unknown whole number and 79 hundredths to equal 46.59.

Answer 1

The unknown number in the addition problem is 2.79. This was found by subtracting 43.8 from 46.59.

Step-by-step explanation:

The subject of this question is Mathematics, and it's a typical problem involving addition of decimals and whole numbers. If adding 43.8 to a certain number gives you 46.59, then that certain number can be found by subtracting 43.8 from 46.59.

So, the calculation would be 46.59 - 43.8 = 2.79. Thus, the unknown number is 2.79.

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