About
About
Breaking apart numbers by place value is a powerful mental math strategy for addition or subtraction. When we decompose a subtrahend (the number being subtracted), it can make an equation easier to solve.
It’s important for students to understand that there is no one right way to break apart a problem. The focus here is on UNDERSTANDING. When students understand the different ways that numbers can be broken apart, it allows them to use flexible thinking to solve problems.
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