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### 65 Cards in this Set

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 Hindu-Arabic system (1) a base-10 number system that has 10 different symbols digits (numerals) (1) symbols used in the base-10 Hindu-arabic system: 0,1,2,3,4,5,6,7,8,9 counting numbers OR natural numbers (1) 1,2,3,4,5... whole numbers (1) 0,1,2,3,4... place value (1) naming the value of a place in a number units (6) 1 tens (1) 10 hundreds (1) 100 thousands (1) 1,000 ten thousands 10,000 hundred thousands 100,000 millions (1) 1,000,000 ten millions 10,000,000 hundred millions 100,000,000 billions 1,000,000,000 ten billions 10,000,000,000 hundred billions 100,000,000,000 trillions 1,000,000,000,000 ten trillions 10,000,000,000,000 hundred trillions 100,000,000,000,000 expanded notation writing the value of every digit in a number individually number line arranging numbers in order on a line origin the zero point of a number line positive numbers the numbers to the right of the origin negative numbers the numbers to the left of the origin integers negative numbers, zero, or positive numbers on a number line graph the dot on the number line that shows a number's location coordinate the number associated with a point on a number line rounding to estimate a number to the nearest 10, 100, 1,000, etc. subtrahend the number subtracted from the minuend minuend the number on top in a subtraction problem difference the answer in a subtraction problem inverse operations (3) opposite operations: addition & subtractions are inverse operations multiplication & division are inverse operations factors (4) numbers that are multiplied together product (4) the answer in a multiplication problem dividend (4) the number being divided in a division problem divisor (4) the number that divides in a division problem quotient (4) the answer in a division problem algorithm (4) a step-by-step process to solve a particular type of problem some, some more (5) addition word problem pattern some, some went away (5) subtraction word problem pattern how much greater (5) subtraction word problem pattern how much less (5) subtraction word problem pattern decimal numbers OR decimal fractions(6) numbers to the right of the decimal point tenths (6) .1 hundredths .01 thousandths (6) .001 ten-thousandths (6) .0001 hundred-thousandths (6) .000001 millionths (6) .0000001 estimation (7) rounding numbers so arithmetic can be done easily multiplying by a power of 10 (8) moving the decimal point to the right; the number of places the decimal point is moved equals the number of zeros in the power of 10 dividing by a power of 10 (8) moving the decimal point to the left; the number of places the decimal point is moved equals the number of zeros in the power of 10 point (9) an exact location in space curve (9) an endless connection of methematical points line (9) a straight curve ray (9) a half line that begins at one point and continues without end through another point line segment (9) the portion of a line between two of its points angle (9) figure formed by two rays that have a common endpoint vertex (9) the common endpoint of two rays (where the rays of the angle meet) perpendicular (9) an angle formed by two rays that are at 90 degrees to each other acute (9) an angle formed by two rays that are at less than 90 degrees to each other obtuse (9) an angle formed by two rays that are at more than 90 degrees to each other straight angle (9) an angle formed by two rays that point in opposite direction to each other perimeter (9) the measurement around or the distance around a figure; the added lengths of the sides of a figure