Succeed with maths – Part 1

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

Free course

# 2 Getting to know your calculator

In the following activities you’ll start to learn how to use your calculator. You have plenty of options when it comes to what calculator to use. You may find it easier to use the one that you are most familiar with, maybe a calculator on your mobile phone, your computer or tablet, an online calculator, or a handheld calculator.

You should get the answer 7! If you didn’t, have another go now, being careful with the numbers that you enter.

Once the calculation is complete, it needs to be cleared before the next calculation can be performed. You clear a calculation by clicking on the button. Do this now; your last calculation should disappear.

Now you’re ready to do arithmetic on your calculator in the next activity. You may find Table 1 helpful in finding the correct button or key if you are using a computer keyboard.

## Table 1 Arithmetic on your calculator

 Mathematical operation Calculator button Computer keyboard key + Shift and ‘=’ on the main keyboard or ‘+’ on the number pad − ‘−’ (the key to the left of ‘=’) on the main keyboard or on the number pad × Shift and ‘8’ on the main keyboard or ‘*’ on the number pad ÷ ‘/’ on the main keyboard or on the number pad = Enter Clear Backspace (as often as needed to clear all entries)

## Activity 2 A few arithmetic problems

Timing: Allow approximately 10 minutes

In this activity, you are going to do several straightforward calculations to make sure that you can get your calculator to work properly. Check the answer in your head so that you know what your calculator should show. Remember to clear the calculation before you enter each new calculation.

• a.5 + 20
• b.100 – 99
• c.2 × 4
• d.10 ÷ 2

• a.25
• b.1
• c.8
• d.5

How did that go? Hopefully you found it fairly straightforward. There will be plenty of chances throughout the eight weeks of the course to become more confident using a calculator.

SWMB_1

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to University-level study, we offer two introductory routes to our qualifications. You could either choose to start with an Access module, or a module which allows you to count your previous learning towards an Open University qualification. Read our guide on Where to take your learning next for more information.

Not ready for formal University study? Then browse over 1000 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus371