Across
- 3. a clock that displays the time in numerical digits rather than by hands on a dial.
- 8. four-sided shape
- 10. twenty-sided shape
- 11. a collection of related addition and subtraction facts, or multiplication and division facts, made from the same numbers.
- 13. six-sided shape
- 15. parenthesis, exponents, multiplication, division, addition, subtraction
- 17. Lines that are always the same distance apart. They do not intersect.
- 19. ten-sided shape
- 22. nine-sided shape
- 24. The primary system of weights and measures used in the United States and a few other countries.
- 26. A whole number greater than 0 that has exactly two different factors, 1 and itself.
- 28. three-sided shape
- 30. a dot placed after the figure representing units in a decimal fraction.
- 32. a line on which numbers are marked at intervals used to illustrate simple numerical operations.
- 34. Two intersecting lines that form right angles
- 35. five-sided shape
- 36. An angle with a measure greater than 90º but less than 180º.
- 37. A system of measurement based on tens. The basic unit of capacity is the liter. The basic unit of length is the meter. The basic unit of mass is the gram.
- 38. A set of rules that tells the order in which to compute.
- 39. A quadrilateral with 2 pairs of parallel and congruent sides.
Down
- 1. Changing the grouping of addends does not change the sum.
- 2. Changing the order of the factors does not change the product.
- 4. A number that has a counting number and a fraction.
- 5. seven-sided shape
- 6. To combine; put together two or more quantities.
- 7. A metric unit of length equal to 0.01 of a meter. 100 cm = 1 m
- 9. a^2+b^2=c^2
- 12. changing the order of addends does not change the sum.
- 14. A number sentence with an equal sign. The amount on one side of the equal sign has the same value as the amount on the other side.
- 16. A mathematical phrase without an equal sign.
- 18. a diagram in which the numerical values of variables are represented by the height or length of lines or rectangles of equal width.
- 20. adding 0 to any number, gives the sum as the number itself
- 21. The number written above the line in a fraction. It tells how many equal parts are described in the fraction.
- 23. A customary unit of weight equal to one-sixteenth of a pound. 16 ounces = 1 pound
- 25. multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number then adding the products together.
- 27. A tool used to measure and draw angles.
- 29. A clock that shows the time by the hour and minute hand positions.
- 31. The result when one number is subtracted from another.
- 33. eight-sided shape
- 35. The distance around the outside of a figure.