area - a model for multiplication problems that relates a rectangular array to the area of a rectagle. The length and width of the rectangle represent the factors of the multiplication problem., array - a rectangular arrangement of equal groups organized in rows and columns, area model - a model for multiplication problems that relates a rectangular array to the area of a rectangle. The length and width of the rectangle represent the factors of the multiplication problem., commutative property of multiplication - changing the order of the factors in a multiplication expression or equation does not change the product, commutative property of addition - changing the order of the numbers in an addition expression or equation does not change its sum, distribute - to multiply each part of a decomposed factor by the other factor, or to divide each part of a decomposed total by the divisor, length - the distance measurement between two points, multiplication - an operation showing how many times a number is added to itself. For example, 6 x 2 represents repeated addition-adding 2 six times, rows and columns - horizontal and vertical groups in a rectangular array, square unit - a unit of area in the shape of a square that has side lengths of 1 unit, tile - to cover a region without gaps or overlaps, unit square - a square with given side lengths of 1 unit, whole number - the number 0 or any of the counting numbers, e.g. 1, 2, 3, 4...,

M4-Lessons 1-8 Area & Multiplication

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