pound, lb - a unit of measurement used for weight, 1 lb is equal to 16 oz, ounce, oz - a unit of measurement used for weight, 16 oz is equal to 1 lb, ton, T - a customary unit of measure for weight, equal to 2,000 pounds, ≈ - the symbol used to show that two numbers are approximately equal, about - with reference to rounding and estimation, a number close to an exact amount., simplifying strategy - a mental math or recorded method for making a problem more efficient to solve,

M2 - Topic A Lessons 4 & 5

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