Mia wants to subtract 57 – 29, but thinks of it as (57 + 1) – (29 + 1) in order to yield 58 – 30 and arrives at the answer 28. Mia is using which of the following algorithms?

a. compensation
b. regrouping and renaming
c. equal additions
d. decomposition


ANSWER:
c

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Indicate whether the statement is true or false

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Indicate whether the statement is true or false

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Choose all of the correct alternatives. I have randomly selected three groups of 25 students each. Each group is given a different type of training to improve reading skills. I want to know if the mean improvement scores differ significantly and it turns out that they do. What can I correctly state?

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Fill in the blank(s) with correct word

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