Unit 3 Post

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of the same number. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What does the term 'product' mean in mathematics?

Back

The product is the result of multiplying two or more numbers together. For example, the product of 3 and 4 is 12.

Front

How can you express '7 times as many' in mathematical terms?

Back

You can express '7 times as many' as multiplication. For example, if Jim has 3 bananas, Clyde has 3 x 7 = 21 bananas.

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, x, ÷) that represents a value. For example, 3 + 5 is an expression.

Front

What is the difference between addition and multiplication?

Back

Addition combines numbers to find a total, while multiplication finds the total of repeated groups of the same size.

Front

What is the formula to find the total cost if one item costs $20 and 30 people buy it?

Back

Total cost = Cost of one item x Number of items bought. So, Total cost = $20 x 30 = $600.

Front

What is the associative property of addition?

Back

The associative property states that when adding three or more numbers, the way in which the numbers are grouped does not change the sum. For example, (2 + 3) + 4 = 2 + (3 + 4).

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a number by a sum by distributing the multiplication.

Front

How can you simplify the expression 5 + 5 + 5 + 5?

Back

You can simplify it by using multiplication: 5 + 5 + 5 + 5 = 4 x 5 = 20.

Front

What is a mathematical expression for finding the total of 15 and 20?

Back

You can find the total by multiplying: 15 x 20.