The sum of two numbers is 5.036. one number has a 4 in the tenths place and 7 in the thousandths place. The other number has a 1 in the ones place and an 2 in the hundredths place. What are the two numbers.

1. x2x

+x. 4x7

5.036 (sorry the underline function is no longer available)

In the thousandth column we have x + 7 and we wind up with a 6 in that column.

Since 7 is already more than 6 that means the only number that will work is 9 and there will be a carry of one into the hundredths place.

1. x29

+x. 4x7

5.036

Now let's look at the tenths column. 2 becomes 3 in the answer and there was a carry of 1 from the thousandths so the other number must be a zero

1. x29

+ x. 407

5.036 Now I need a number that goes with 4 and puts a zero in the answer.

That number has to be 6 and does cause a carry of one into the ones

place

1.629

+x. 407

5.036

Finally (remembering there is a carry of one in the ones place) I have two (1 + 1 carried) toward my five in the answer. I need three more.

Here is the final example:

1.629

+3.407

5.036