Math RBA crossword

2. In 3.2 × 10⁴, the 3.2 is known as the ___.
6. The product of a surd and its conjugate always gives a ___ number.
8. Rounding numbers before calculation is called ___.
12. The middle value of an ordered data set.
15. In 2³ = 8, the 3 is called the ___.
16. BOUND The lowest possible value a rounded number could have been
18. To rewrite x² – 9 as (x – 3)(x + 3), you must ___.
20. The inequality sign reverses when multiplying or dividing both sides by a ___ number.

1. The range of true values a rounded measurement can lie within is called the ___ interval.
3. Another name for "power" in mathematics.
4. The amount of space a solid occupies.
5. If 4 pencils cost ₹20, then the cost of 10 pencils can be found using the method of ___ proportion.
7. The x-___ is the horizontal line in a coordinate plane.
9. A root that cannot be simplified into a rational number.
10. The constant value in a proportion a:b = c:d is sometimes referred to as the ___.
11. Estimating √45 as 7 is an approximation to the nearest whole ___.
13. x + 3 < 7 is an example of an ___.
14. The process that gives upper and lower bounds to a value.
17. The “k” in y = kx for direct proportion is called the ___.
19. The most frequently occurring value in a data set.