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How do you write 12 less than a number?
Explanation: 12 less than a number means to subtract 12 from that number. So, 12 less than 20 is 8 , because is 20−12 , 12 less than 12 is 0 , because it’s 12−12 , and so on. But since you don’t know which number you need to subtract from, it’s a variable, and you can call it as you like, usually x .
What is the correct way to write a quotient?
dividend ÷ divisor = quotient. Example: in 12 ÷ 3 = 4, 4 is the quotient.
Is a mathematical expression?
When we combine numbers and variables in a valid way, using operations such as addition, subtraction, multiplication, division, exponentiation, and other operations and functions as yet unlearned, the resulting combination of mathematical symbols is called a mathematical expression.
How do you differentiate mathematical expressions from mathematical equations?
An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.
How do you differentiate mathematical expression from mathematical equations?
What does 7 less than mean in algebraic expression?
The “7 less than” means “minus 7” to whatever quantity being described which in this case “the product of a number and 6”. Here’s the final interpretation of the math phrase in an algebraic expression: 6k-7 6k − 7 Example 4: Write an algebraic expression for the math phrase ” the average of a number and 4″.
What does 7 less than the product of a number mean?
The “7 less than” means “minus 7” to whatever quantity being described which in this case “the product of a number and 6”. Here’s the final interpretation of the math phrase in an algebraic expression: Example 4: Write an algebraic expression for the math phrase ” the average of a number and 4″.
What is the algebraic expression for twice?
Solution: The word “twice” means we are going to double something. In this case, we want to double an unknown value or quantity. Let the letter d be the unknown number, when we double it we get the algebraic expression 2d. 2d 2d.
What is a numerical expression in math?
A numerical expression in mathematics can be a combination of numbers, integers combined using mathematical operators such as addition, subtraction, multiplication, or division. Examples of Numerical Expressions We can form a numerical expression by combining numbers with various mathematical operators.