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Grade Seven: Number Sense Sentence Frames Add, subtract, multiply, and divide rational numbers (integers, fractions, and terminating decimals) and take positive rational numbers to whole-number powers. 1. _ _ _ to the _ _ _ power equals _ _ _. (whole numbers) 2. Negative _ _ _ to the _ _ _ power equals _ _ _. 3. (_ _ _/_ _ _) to the _ _ _ power equals _ _ _. (positive fraction raised to a whole number power). Convert fractions to decimals and percents and use these representations in estimations, computations, and applications. 1. The fraction _ _ _ is equivalent to the decimal _ _ _. 2. The decimal _ _ _ is equivalent to the fraction _ _ _ and _ _ _ percent. 3. _ _ _ (fraction) , _ _ _ (decimal), and _ _ _ percent are three different representations of the same value. 4. I would convert 3/5 to a _ _ _ first by_ _ _ and then I would convert _ _ _ to a _ _ _ by _ _ _. 5. I would convert 0.84 to a _ _ _ first by_ _ _ and then I would convert _ _ _ to a _ _ _ by _ _ _. 6. I would convert 138% to a _ _ _ first by_ _ _ and then I would convert _ _ _ to a _ _ _ by _ _ _. Differentiate between rational and irrational numbers. 1. _ _ _ is a rational number because it can be written as the fraction _ _ _. Know that every rational number is either a terminating or repeating decimal and be able to convert terminating decimals into reduced fractions. 1. _ _ _ can be written as a terminating decimal. 2. _ _ _ can be written as a terminating decimal. However, _ _ _ cannot be written as a terminating decimal. 3. _ _ _ can be written as a terminating decimal because the denominator can be written as _ _ _. (product of twos and fives) 4. _ _ _ can be written as a repeating decimal because _ _ _ is a factor of the denominator. (something other than 2 and 5) Solve problems that involve discounts, markups, commissions, and profit and compute simple and compound interest. 1. If an item is on sale for _ _ _ percent off, the sale price is _ _ _ percent of the original cost. 2. _ _ _ is an irrational number because it cannot be written as a fraction. 3. _ _ _ is a rational number. However, _ _ _ is an irrational number. Calculate the percentage of increases and decreases of a quantity. 1. If the number 100 is increased by _ _ _ percent, the resulting quantity is _ _ _. 2. If the number 100 is decreased by _ _ _ percent, the reulting quantity is _ _ _. Understand negative whole-number exponents. Multiply and divide expressions involving exponents with a common base. 1. _ _ _ to the _ _ _ times _ _ _ to the _ _ _ equals _ _ _ to the _ _ _. 2. _ _ _ to the _ _ _ divided by _ _ _ to the _ _ _ equals _ _ _ to the _ _ _. 3. _ _ _ to the _ _ _ raised to the _ _ _ equals _ _ _ to the _ _ _. 4. _ _ _ raised to the zero power equals _ _ _ . 5._ _ _ to the negative _ _ _ is equivalent to one over _ _ _ to the _ _ _. Multiply, divide, and simplify rational numbers by using exponent rules. 1. _ _ _ to the _ _ _ times _ _ _ to the _ _ _ equals _ _ _ to the _ _ _. 2. _ _ _ to the _ _ _ divided by _ _ _ to the _ _ _ equals _ 2. If $100 is invested at a simple interest rate of _ _ _ percent per year, the amount of interest earned each year is _ _ _ dollars. Add and subtract fractions by using factoring to find common denominators. 1. To add the fractions _ _ _ and _ _ _, use _ _ _ as the common denominator. Use the inverse relationship between raising to a power and extracting the root of a perfect square integer; for an integer that is not square, determine without a calculator the two integers between which its square root lies and explain why. 1. The square root of _ _ _ is _ _ _. 2. Since the square root of _ _ _ is _ _ _, then _ _ _squared must be _ _ _. 3. If the side of a square measures _ _ _, then the area of the square is _ _ _. Therefore, the square root of _ _ _ is _ _ _. 4. The square root of _ _ _ is between _ _ _ and _ _ _. Grade Seven: Number Sense Sentence Frames _ _ to the _ _ _. 5. Since _ _ _ squared is _ _ _ , and _ _ _ squared is _ _ _, 3. _ _ _ to the _ _ _ raised to the _ _ _ equals _ _ _ to the the square root of _ _ _ must be between _ _ _ and _ _ _. _ _ _. 4. _ _ _ raised to the zero power equals _ _ _ . 5._ _ _ to the negative _ _ _ is equivalent to one over _ _ _ to the _ _ _. Understand the meaning of the absolute value of a number; interpret the absolute value as the distance of the number from zero on a number line; and determine the absolute value of real numbers. 1. The absolute value of _ _ _ is _ _ _. 2. The absolute value of _ _ _ is _ _ _ because the distance from _ _ _ to zero on the number line is _ _ _.