Still Confused?

Try reviewing these fundamentals first.

- Home
- UK Year 8 Maths
- Rational Numbers

Still Confused?

Try reviewing these fundamentals first.

Still Confused?

Try reviewing these fundamentals first.

Nope, I got it.

That's that last lesson.

Start now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started Now- Lesson: 14:24
- Lesson: 2a3:54
- Lesson: 2b4:51
- Lesson: 3a5:16
- Lesson: 3b2:03
- Lesson: 3c2:45
- Lesson: 3d1:10
- Lesson: 4a3:40
- Lesson: 4b4:29
- Lesson: 4c4:43
- Lesson: 4d5:33
- Lesson: 5a1:45
- Lesson: 5b0:47
- Lesson: 5c0:45
- Lesson: 5d0:46

In this section, we will look at how to evaluate a rational number by using square roots. We will also work on questions determining whether a rational number is a perfect square. We will also evaluate the square roots of rational numbers.

Related concepts: Square and square roots, Cubic and cube roots, Evaluating and simplifying radicals,

- 1.Use the graph below to determine a rational number with a square root between 4 and 5.

- 2.Use the side lengths below to estimate and calculate the area of each square.a)5.2 cmb)0.027 km
- 3.Find out if each of the following rational numbers is a perfect square.a)$\frac{{81}}{{16}}$b)0.1c)0.01d)$\frac{5}{{14}}$
- 4.Evaluate.a)$\sqrt {361}$b)$\sqrt {2209}$c)$\sqrt {0.0169}$d)$\sqrt {5.76}$
- 5.Calculate.a)$\sqrt {56}$, to the nearest tenthb)$\sqrt {3.7}$, to the nearest hundredthc)$\sqrt {0.96}$ , to the nearest hundredthd)$\sqrt {0.066}$ , to the nearest hundredth

We have over 1450 practice questions in UK Year 8 Maths for you to master.

Get Started Now