Across
- 2. It is the sum of all the data in a set of data divided by the number of data.
- 5. A point on a line that is in the middle.
- 8. The fraction that the numerator is smaller than the denominator.
- 11. A straight line that is draw from top to the bottom.
- 12. When a line is perpendicular to another line, the angle between them is a ( ).
- 14. It is also a form of improper fraction, and the mixed fraction contains two parts: the integral part and the fraction part.
- 16. It is a kind of arithmetic which shows the difference between two numbers.
Down
- 1. The position of each digit in a number.
- 3. The number that is written behind in the multiplication formula.
- 4. It generally refers to the angle between the two sides of a triangle which is the ( ) angle to the third side.
- 6. There are at least two equal sides.
- 7. It refers to the data with the number which appeared most of the time in the set of data. A set of data can have muliple modes, or it can have no mode.
- 9. It is the number that is multiplied in the multiplication formula, it always at the front of the equation.
- 10. A number that does not contain fractions or decimals, that can be zero and a natural number with a plus or minus sign.
- 13. A set of data is arranged in the order of small to large (or from large to small) and the number in the middle ( or the average of the two data in the middle).
- 15. It is a shortcut that adds up the same number.