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Without a calculator, add the following decimals.  


    Think about the place values of each of the digits and add like parts. In the first number, the means whole and the means wholes, so adding them, we get wholes.

    Now we can add the total number of hundreds. In the first number, there are tenths, or hundreds. In the second number, there are only hundredths. So combined we have hundreds.

    wholes and hundredths is written .


    Follow the same steps as in part (a).

Compute without a calculator