HELP MIDDLE SCHOOL QUESTION

0.421

Step-by-step explanation:

There are two diagrams, one for 0.137, and one for 0.284.

I'll go place by place from least to greatest.

First, add 7 thousandths and 4 thousandths.

That will equal 11 thousands. That's greater than 9, so add 1 hundredth to the equation.

(0.1 + 0.2) + (0.03 + 0.08 + 0.01) + 0.001

Now, add 3 hundredths and 8 hundredths.

That will equal 11 hundredths. Add the other hundredth from the regrouping of the thousands for 12 hundredths. That is also greater than 9, so add 1 tenth to the quation

(0.1 + 0.2 + 0.1) + 0.02 + 0.001

Then, add 1 tenth and 2 tenths.

That will equal 3 tenths. Add the other tenth from the regrouping of the hundredths to get 4 tenths.

0.4 + 0.02 + 0.001

Now add 0.4, 0.02, and 0.001.

0.42 + 0.001

0.421

The answer to 0.137 + 0.284 equals 0.421.

-81 -56 -27 0 81

step-by-step explanation: