What does the symbol ≈ mean?

The symbol ≈ means approximately equal to .

True or False? The equals sign (=) is used to show that two expressions are identical .

False. The equals sign (=) is used to show that two expressions are equal , while the identical sign (≡) is used to show that two expressions are identical .

What is an inequality ?

An inequality is a statement that compares two quantities in terms of their size using symbols such as >, <, ≥, or ≤.

True or False? The symbol ± is used to represent two distinct answers .

True. The symbol ± is used to represent two distinct (different) answers, often in quadratic equations.

What mathematical operation does the word sum imply?

The word sum implies that you need to add numbers together.

If you are asked to find the difference of two numbers, which operation should you use?

Subtraction is the mathematical operation of finding the difference between two numbers by taking one number away from another.

True or False? The word share implies that you need to divide numbers.

True. The word share implies that you need to divide numbers.

What mathematical operation is implied by a question asking you to find the product of two or more numbers?

The word product is often used to imply that you need to multiply two numbers together.

What do the letters of BIDMAS/BODMAS represent?

The letters in BIDMAS/BODMAS represent: Brackets, Indices, Division, Multiplication, Addition, Subtraction. BIDMAS/BODMAS is an acronym that stands for the order of operations in mathematics.

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Operations with Numbers & Decimals (Cambridge (CIE) IGCSE International Maths: Core): Flashcards

Exam code: 0607

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What is an exponent?

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Cards in this collection (14)

What is an exponent?
An exponent is a power or order used in mathematical expressions to represent repeated multiplication of a base number.
E.g. In the expression $4^{5}$ , the 5 is the exponent.
What does the symbol ≈ mean?
The symbol ≈ means approximately equal to.
True or False?
The equals sign (=) is used to show that two expressions are identical.
False.
The equals sign (=) is used to show that two expressions are equal, while the identical sign (≡) is used to show that two expressions are identical.
What is an inequality?
An inequality is a statement that compares two quantities in terms of their size using symbols such as >, <, ≥, or ≤.
True or False?
The symbol ± is used to represent two distinct answers.
True.
The symbol ± is used to represent two distinct (different) answers, often in quadratic equations.
What does this symbol $\sqrt{}$ represent?
$\sqrt{}$ is the positive square root.
It represents the positive result when you find perform the opposite (inverse) operation of squaring a number.
$- \sqrt{}$ is the negative square root.
What mathematical operation does the word sum imply?
The word sum implies that you need to add numbers together.
If you are asked to find the difference of two numbers, which operation should you use?
Subtraction is the mathematical operation of finding the difference between two numbers by taking one number away from another.
True or False?
The word share implies that you need to divide numbers.
True.
The word share implies that you need to divide numbers.
What mathematical operation is implied by a question asking you to find the product of two or more numbers?
The word product is often used to imply that you need to multiply two numbers together.
How can you perform a division by cancelling common factors in a fraction?
E.g. $1008 \div 28$
A division can be treated like a fraction where common factors from both the numerator and denominator can be found and cancelled.
E.g. $1008 \div 28$ can be written as $\frac{1008}{28}$
You can then cancel it to its simplest form by finding common factors, $\frac{1008}{28} = \frac{504}{14} = \frac{252}{7} = 36$
What do the letters of BIDMAS/BODMAS represent?
The letters in BIDMAS/BODMAS represent: Brackets, Indices, Division, Multiplication, Addition, Subtraction.
BIDMAS/BODMAS is an acronym that stands for the order of operations in mathematics.
True or False?
When using BIDMAS/BODMAS on a calculation that only involves addition and subtraction, the calculation should be performed from left to right.
E.g. $\begin{array}{rcl} 2 - 5 + 7 - 3 - 2 \end{array}$
True.
When using BIDMAS/BODMAS on a calculation that only involves addition and subtraction, the calculation should be performed from left to right.
E.g. $\begin{array}{rcl} 2 - 5 + 7 - 3 - 2 \end{array}$
$\begin{array}{rcl} = & - 3 + 7 - 3 - 2 \\ = & 4 - 3 - 2 \\ = & 1 - 2 \\ = & - 1 \end{array}$
True or False?
When using BIDMAS/BODMAS on a calculation that only involves multiplication and division, the divisions should always be performed first.
E.g. $3 \times 8 \div 2 \times 9$
False.
When using BIDMAS/BODMAS on a calculation that only involves multiplication and division, the calculation should be performed from left to right.
E.g. $3 \times 8 \div 2 \times 9$
$= 24 \div 2 \times 9 = 12 \times 9 = 108$

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