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Mastering Mental Math for 2nd Graders by api-356514016 is a document available to read on EtoBox.

What is Mastering Mental Math for 2nd Graders about?

This document provides instructions for adding or subtracting 10 or 100 to a three-digit number using mental math. It explains that you should add or subtract from the hundreds place, tens place, or ones place depending on the digit being added or subtracted. Understanding place value helps solve these types of math problems quickly without paper and pencil. The goal is to use these mental math strategies to practice addition and subtraction.

Author

api-356514016

Language

EN