## Using Friendly Numbers: An Addition Strategy

April 4, 2018

WHAT IS A FRIENDLY NUMBER? In this case, we refer to friendly numbers as a number that is easy…

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April 4, 2018

WHAT IS A FRIENDLY NUMBER? In this case, we refer to friendly numbers as a number that is easy…

Continue readingApril 3, 2018

Compensation is a mental math strategy for multi-digit addition that involves adjusting one of the addends to make the equation…

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Breaking up the second number is a mental math strategy for addition. Some students may find this method more efficient…

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Left-to-right addition (also known as front-end addition or the partial sums method) is one of the most powerful mental math…

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Depending on the grade level that you teach, you will handle adding plus 7, 8, and 9 a bit different…

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The doubles facts are generally an introductory set of facts that we want our students to memorize. We can relate…

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