GCSE Maths Number Basics: lesson and practice questions

By the end of this chapter you will be able to

• Use place value to read, write and order whole numbers and decimals, and use the symbols =, ≠, <, >, ≤, ≥
• Add, subtract, multiply and divide whole numbers and decimals using formal written methods
• Order, add, subtract, multiply and divide negative numbers
• Use BIDMAS for brackets, powers and roots, and use inverse operations and reciprocals
• Use and convert units of length, mass, capacity, time and money, including decimal quantities
• Solve multi-step number problems and check the answer

You should already know

• Times tables up to 10 × 10
• Counting in steps, and the names of the digits in a number
• Adding and subtracting small numbers in your head

Where this leads

• Factors, multiples and primes (Chapter 2)
• Fractions (Chapter 3)
• Rounding and estimation (Chapter 4)
• Percentages (Chapter 5)
• Algebra (Chapter 7 onwards)