IGCSE Math 0580 Ch1

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

How do you round a number to 3 significant figures?

Back

To round a number to 3 significant figures, identify the first three non-zero digits and round the last digit based on the digit that follows it.

Front

What is prime factorization?

Back

Prime factorization is the process of expressing a number as the product of its prime factors.

Front

What is the prime factorization of 40?

Back

Front

What is the highest common factor (HCF)?

Back

The highest common factor (HCF) is the largest number that divides two or more numbers without leaving a remainder.

Front

How do you find the HCF of two numbers?

Back

To find the HCF, list the prime factors of each number, then multiply the lowest powers of all common prime factors.

Front

What is the order of operations in mathematics?

Back

The order of operations is the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - often abbreviated as PEMDAS.

Front

How do you use brackets to change the order of operations?

Back

Brackets can be used to group numbers and operations, indicating that the operations within the brackets should be performed first.

Front

What are multiples of a number?

Back

Multiples of a number are the products of that number and any integer.

Front

List the first 3 multiples of 12.

Back

The first 3 multiples of 12 are 12, 24, and 36.