Achieving good basic numeracy makes all areas of mathematics easier and faster. Calculating the sums in mind can save valuable exam time, but it's not always easy to do these sums in mind.
Steps
Step 1. Start calmly, take your time
Don't jump straight into wanting to calculate how much 235433 × 95835.344 is, if you are able to, you don't need to read this article. Start with very simple addition and subtraction, even if it's patronizing, make sure you can do it quickly.
Step 2. Learn the multiplication tables and find the patterns in them
Knowing the patterns will make multiplying and dividing large numbers much easier. Repeat this step until you can recite them backwards and casually. Every day you rewrite all 12 multiplication tables once.
Step 3. Visualize what you are doing
Whether you imagine writing the sum or counting objects, visualizing the calculation will make it easier to solve.
Step 4. Use your fingers
Learn to count to 99 with your fingers and then use it to "memorize" the number so you don't have to worry about forgetting it while you're doing a different part of the calculation.
Step 5. Learn the shortcuts
There are many such things that allow you to make the calculations much easier. Look on the internet and ask your teacher to see if there is any possible shortcut to the calculation (or part of it) you are trying to do.
Step 6. Practice regularly
Assign yourself some calculations to do every day, starting with the simple ones and gradually moving towards the more complex ones.
Step 7. Don't give up too soon
It will take some time to get good at calculating. Don't give up too soon. It will take time to get good at calculations. Persevere and don't give in to the calculator too soon.
Step 8. Test yourself
Once you are able to do the basic math quickly, challenge yourself. Increase your skills and aim to do the math as quickly and accurately as possible.
Step 9. Don't be afraid to use the calculator to check your answer if you're unsure
There will be very few situations outside of exams / school where you need to work without a calculator and if you find that you are doing them correctly, this will help you get comfortable.
Advice
- Perseverance is the key. It will take a lot of practice, so don't give up too soon.
- Always be confident in what you are doing.
