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# Mathematics Vocabulary Topic

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MATHEMATICS VOCABULARY What are the important spelling and vocabulary words for second grade math? Addition - putting numbers together. When you use a number line, you add when you move to the right. This is called counting on. Addends - the numbers which are added. Plus - The sign which tells you to add. It looks like this: + Sum - the answer when you add numbers. Fact family - a group of addition and subtraction sentences that belong together. 4 + 3 = 7, 3 + 4 = 7, 7 - 3 = 4, 7- 4 = 3 Subtraction - Taking numbers away is called subtracting. When you use a number line, you subtract when you move to the left. This is called counting back. Difference - the answer when you subtract Minus - the sign which tells you to subtract. It looks like this: - Equals - the sign which takes you to the answer when you add or subtract. It looks like this: = Compare - There are 2 math symbols that help you compare numbers. They are >, < Greater than - The sign for greater than is >. It is used to compare. Example: 7 >2 Less than - the sign for less than is <. I t is used to compare. Example: 7< 9 Fewer - Fewer means less than. When you subtract your answer must be fewer than you started with. More - means a larger number. When you add, you must end up with a larger number. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.

Penny - a coin that is worth one cent. It is always copper. Nickel - a coin that is worth five (5) cents. Dime - a coin that is worth ten (10) cents. Quarter - a coin that is worth twenty-five (25) cents. Dollar - a coin or paper bill that is worth 100 cents. Fraction - a part of a whole or set of objects. Each fraction is an equal part of the whole. Fourths - when an object or set is divided into four equal parts, each part is one fourth. <a p ie showing fourths> Half/ halves - when an object or set is divided into two equal parts, each part is one half. <candy bar> Thirds - when an object or set is divided into three equal parts, each is one third. <set o f 9 balls> Circle - a round shape that has no corners. <circle> Triangle - a shape that has three sides and three corners <triangle> Rectangle - a shape that has four sides and four corners. <rectangle> Square - a rectangle in which all the sides are equal <square> Hexagon - a shape that has six equal sides <hexagon> Pentagon - a shape that has five equal sides <pentagon> Perimeter - the distance around any shape Diameter - the distance through the middle of a circle that cuts the circle into two equal halves. Try this: Fill in the blank with the correct word. 1. When you put numbers together, you _________ circle, add, subtract 2. When you count back on a number line, you ________ divide, add, subtract 3. The ________ is the answer when you subtract. Sum, difference, plus 4. What coin is worth five pennies? Nickel, dime, quarter 5. What is the value of two quarters? 25 cents, 50 cents, one dollar © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.

6. When you divide a set into two equal parts, each part is a _______ cent, half, third 7. A ________ is a rectangle in which all the sides are the same length. Circle, square, fraction © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.