Students practiced three digit addition using many strategies. We discussed the many ways we could break apart or change a problem using what we know about place value and rounding. We used these ideas to "start/attack" the problem quickly. Then we solved the rest of the problem with another strategy we thought would work best. We decided different problems could have a different start depending on which strategy worked best. Rounding and place value were good "starts"!
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December 2013
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