SKU: 78431344580

Math Mammoth Subtraction 1

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Math Mammoth Subtraction 1Math Mammoth Subtraction 1 is a worktext that covers the concept of subtraction, the relationship between addition and subtraction, and the various meanings of subtraction. In the first lesson, Subtraction Is Taking Away, the child learns the basic meaning of subtraction as taking away objects, and learns to write subtractions from an illustration where some objects are crossed out. In the next lesson, the child counts down to subtract, which ties in

Math Mammoth Subtraction 1 is a worktext that covers the concept of subtraction, the relationship between addition and subtraction, and the various meanings of subtraction.

In the first lesson, Subtraction Is Taking Away, the child learns the basic meaning of subtraction as taking away objects, and learns to write subtractions from an illustration where some objects are crossed out.

In the next lesson, the child counts down to subtract, which ties in subtraction with the number line. This is a transitional strategy to solve subtraction problems, because later students will learn more efficient ways to subtract, but it is important conceptually.

The following lesson, Subtraction and Addition in the Same Picture, begins the study of the relationship between addition and subtraction. This concept will span several lessons. This first lesson presents two sets of objects, such as blue and white balls, and the student writes both an addition sentence and a subtraction sentence from this illustration.

The lesson When Can You Subtract? concentrates on the idea that some subtractions, such as 4 _ 5, are meaningless when you think of taking away. The child also makes subtraction patterns in this lesson.

Then we continue studying the connection between addition and subtraction in the lesson Two Subtractions from One Addition. As an example, the child writes both 8 _ 3 = 5 and 8 _ 5 = 3 from the addition 3 + 5 = 8. This idea ties in with fact families, a concept that is coming up soon.

In the lesson Two PartsÑOne Total, we study word problems that do not involve the idea of taking away but have two parts making up a total. For example, if there are 10 flowers of which some are white and some are red, and seven of them are white, how many are red?

Then we study fact families. This means writing two additions and two subtractions using the same three numbers.

In the lesson How Many More? students find how many more or how many fewer objects one person has than the other by drawing the objects. This lesson can easily be done with manipulatives if desired.

In the very next lesson, ÒHow Many MoreÓ Problems and Differences, we continue the theme, this time writing a missing addend addition for problems that ask Òhow many more.Ó For example, Veronica has 4 marbles and Ann has 6. We write the missing addend sentence 4 + ___ = 6 to find how how many more Ann has. In the next lesson the child then learns to write subtraction sentences for such problems.

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SKU: 78431344580

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Color is off! The brown is really a rusty orange color.
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Versatile pillow covers
These are nice pillow covers. They are neutral luxe you can really use them with any style. The material is thin though so you have to be careful popping them on and off.
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The Throw Pillow Covers 18x18 Inch - Pack of 2 White Luxury Soft Cozy Decorative Pillow Covers are a delightful addition to any home décor. These pillow covers are crafted from high-quality, soft fabric that exudes luxury and comfort. The pristine white color adds a touch of elegance and sophistication to any room, making them versatile enough to complement various interior styles. One of the standout features of these pillow covers is their softness. They feel incredibly cozy, providing a comfortable resting spot on a couch, bed, or chair. The 18x18-inch size is perfect for standard throw pillows, ensuring a snug fit without any hassle. The covers are not only stylish but also durable. The stitching is robust, and the material holds up well over time, even with regular use. They are also easy to maintain and machine washable, which adds to their convenience. Overall, these pillow covers are an excellent investment for anyone looking to enhance their living space with luxury and comfort. They are aesthetically pleasing, practical, and built to last.
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Reviewed in the United States on June 19, 2024
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Thin material
The material is a little thin. Even though these pillow covers are lined with a satin type material they are still a little see through. I tried to insert another pillow I had that had a print on it but you could see the other pillow through it. If you use a plain while pillow insert these should be ok.
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Love the fabric and the design. Elegant looking and cozy. I chose the light color to brighten up the couch. It’s a nice contrast with a dark shade of sofa, and gives a bright clean vibe with light colored couches. Made is of good quality and the zipper looks sturdy.
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Reviewed in the United States on November 16, 2024

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