Math Mammoth
Math Mammoth Add & Subtract 3 Worktext

Math Mammoth Add & Subtract 3 Worktext

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A self-teaching worktext for grade 3 math. It includes both the instruction (written directly to the student) and a variety of exercises and word problems in the same book.

This book focuses on addition and subtraction, both with mental math and in columns, at a 3rd grade level. The book especially deals with regrouping twice in subtraction and regrouping over zero tens in subtraction. The first part of the book focuses on mental math, word problems, and patterns, while the latter half of the book focuses on rounding, adding and subtracting three-digit numbers, and graphs.