Math Review

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What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

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What is subtraction?

Back

Subtraction is a mathematical operation that represents the process of removing objects from a collection. For example, if you have 10 apples and you give away 4, you have 10 - 4 = 6 apples left.

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What is addition?

Back

Addition is a mathematical operation that combines two or more numbers to get a total. For example, 2 + 3 = 5.

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What is a word problem in math?

Back

A word problem is a mathematical question that is presented in the form of a story or real-life scenario, requiring the reader to extract the necessary information to solve it.

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How do you find the total number of items in groups?

Back

To find the total number of items in groups, multiply the number of groups by the number of items in each group. For example, if there are 4 groups of 5 apples, the total is 4 x 5 = 20 apples.

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What is a case in math?

Back

A case in math often refers to a specific instance or example that is used to illustrate a concept or problem.

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What does it mean to have '3 times' a number?

Back

Having '3 times' a number means you have that number added to itself three times. For example, 3 times 5 means 5 + 5 + 5 = 15.

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What is the equation to find out how much is left after using some?

Back

The equation to find out how much is left after using some is: Total amount - Amount used = Amount left.

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What is a digit?

Back

A digit is any of the numbers from 0 to 9 used to represent numbers. For example, in the number 345, the digits are 3, 4, and 5.

Front

What is the value of a digit in a number?

Back

The value of a digit in a number depends on its position. For example, in the number 256, the digit 5 is in the tens place, so its value is 50.