GCSE Secondary Maths Age 13-17 - Number: Standard Form - Explained

The video tutorial explains how to convert numbers from scientific notation to ordinary numbers and vice versa, using a calculator. It covers multiplying numbers in scientific notation and converting results to standard form. The tutorial also provides exam tips, emphasizing the importance of using a calculator efficiently and understanding marks allocation.

What is the ordinary number form of 4.7 * 10^-1?

• 0.047

• 4.7

• 47

• 0.47

When multiplying numbers in scientific notation, why is it recommended to use a calculator?

• To avoid errors in manual calculations

• To practice calculator skills

• To save time and ensure accuracy

• To convert numbers to fractions

What is the first part of a number in standard form?

• A value greater than or equal to 1 but less than 10

• A value greater than 10

• A value equal to 10

• A value less than 1

How many places does the decimal point move to convert 2.28 * 10^9 back to its original number?

• 10 places

• 9 places

• 8 places

• 7 places

What should you do if an exam question requires you to show your work?

• Use a calculator for all steps

• Show every step of your calculations

• Only write the final answer

• Skip the question