Math Vocabulary

2. a quadrilateral with two sets of parallel sides. If it has 4 right angles then, it is a special parallelogram called a rectangle. If it has 4 right angles and equal sides then, it is a square.
3. to give an approximate number or answer. 400 is an estimate for 398. You use rounding to make an estimate.
6. hour a unit of time measuring 30 minutes.
12. unit. a square with side lengths of 1 unit that is used to measure the area of a figure. i.e., a square with 3 in. sides has an area of 9 square inches.
13. form to write a # that shows that values of each digits. 6,057=6,000+0+50+7
14. a quadrilateral that has only one set of parallel lines.
16. a way to describe a shape, like number of sides, or length of sides.
17. the answer to a subtraction problem. In 7-2=5, 5 is the difference.
19. a group of 12
21. objects arranged in rows and columns; used to solve multiplication. This array shows 2 rows of 6; 2 x6 = 12
22. bottom part of a fraction that tells how many equal parts of a whole. ½ ,the 2 is the denominator.
23. the two numbers that are being multiplied. In 7x6=42, the factors are 7 and 6.
24. fraction a fraction with a numerator of one. ¼. ½
26. a quadrilateral that has equal sides and no right angles.
27. the answer to a division problem. 24 divided by 8 equals 3. 3 is the quotient.
29. a plane polygon with four sides and four corners. i.e., square, rectangle, rhombus, trapezoid, and parallelogram.

1. lines lines that do no cross or intersect.
4. fractions fractions that name the same amount. 2/4= 1/2.
5. the answer to a multiplication problem. In 8x7=56. The product is 56.
7. the # when all the outer edges are added. A square with 3 in. on all sides 3in.+ 3in.+ 3in.+ 3in.= 12in.
8. the answer to an addition problem. In the problem, 2+7=9, the sum is 9.
9. a special parallelogram that has two sets of parallel and equal sides with four right angles.
10. the top # in a fraction that tells the # of parts that you are looking for. 3/6 is 3 out of 6, the numerator is 3.
11. a closed shape with straight edges.
15. #’s 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
16. the # of square unites needed to cover a figure. The amount of space a shape covers.(L x W) a square with 3 in. on all sides = 3in. x 3in. = 9 square inches.
18. a way to compare equal parts; its only part of a whole #. ¾ is three equal parts out of four equal parts.
20. family a set of related number sentences. Ex. 7,6,42; 427=6, 426=7, 7x6=42, 6x7=42
22. to place in equal groups; repeated subtraction 21  3 = 7.
25. a special parallelogram that has 4 right angles and all equal sides.
28. what is done to solve a problem --- addition, subtraction, multiplication and division.