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Home > CC1 > Chapter 8 > Lesson 8.1.4 > Problem 8-53


Maciel and Alejandro were trying to figure out the answer to . Maciel thinks the answer is , but Alejandro got . Who is correct? Why? What did the other person do wrong?  

Think about the meaning of . Does it mean tenths? hundreths? thousandths? Which part of has the same place value?

means tenths. means wholes, tenths, and hundreths. Can you combine these values now?

Maciel is correct. Can you explain how Alejandro found the wrong sum?