Math Mammoth Add & Subtract 1
$4.80
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A self-teaching worktext for grade 1 math. It includes both the instruction (written directly to the student) and a variety of exercises and word problems in the same book.
The book deals with two major topics from the first grade level: adding and subtracting within 0-20 and adding and subtracting two-digit numbers, mostly with mental math. Students learn specific mental math strategies for adding and subtracting numbers under 20 and some strategies for adding two-digit numbers in general. The lessons in the book build the student’s number sense: the ability to manipulate numbers by breaking them apart and composing them in different ways.
The book deals with two major topics from the first grade level: adding and subtracting within 0-20 and adding and subtracting two-digit numbers, mostly with mental math. Students learn specific mental math strategies for adding and subtracting numbers under 20 and some strategies for adding two-digit numbers in general. The lessons in the book build the student’s number sense: the ability to manipulate numbers by breaking them apart and composing them in different ways.
