Maths crossword

2. The reciprocal of a positive rational number is _____.
3. The graphical representation of data when there is no gap between the class interval is called a _________.
4. The operation for multiplication is _____ for rational numbers.
7. The difference between the upper class limit and lower class limit is called the ______of the class interval.
8. Data available to use in an unorganized form called- ______ data.
10. An algebraic equation is an equality involving _________.
12. An equation is the equality of the values of two ________.
13. Rational numbers can be represented on a _____ line.
15. The rational number zero is the ______ identity for rational numbers.
16. Data is represented _______ to give a clear idea of what it represents.
17. ______ gives the number of times that a particular entry occurs.
18. Each outcome of an experiment or a collection of outcomes make an _______.
20. The rational number one is the _____ identity for rational numbers.

1. The operation for addition is _____ for rational numbers.
5. In order to draw meaningful inferences from any data, we need to organize the data _______.
6. A ______ graph is also called a pie chart.
9. A circle graph shows the relationship between a _______ and its part.
11. The product of two rational number is always a ____.
14. The expressions forming equations have to be ________ before we can solve them by usual methods.
19. In an equation the values of the expressions on the LHS and RHS are _______.