3.OA.9 Review

Front

What is a pattern in numbers?

Back

A pattern in numbers is a sequence that follows a specific rule or formula, such as adding or subtracting a certain number.

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What does it mean to 'count by 2's'?

Back

Counting by 2's means to add 2 to the previous number each time, resulting in a sequence like 2, 4, 6, 8, 10.

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What is the rule for the pattern 10, 20, 30, 40, 50?

Back

The rule is counting by 10's, where each number is 10 more than the previous one.

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What happens to the ones digit when you add 1 to a number?

Back

The ones digit increases by 1, and if it reaches 10, it resets to 0 and the tens digit increases by 1.

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What is an even number?

Back

An even number is any integer that can be divided by 2 without a remainder, such as 2, 4, 6.

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What is an odd number?

Back

An odd number is an integer that cannot be divided by 2 evenly, such as 1, 3, 5.

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What does it mean for a number to be multiplied by 3?

Back

Multiplying a number by 3 means adding that number to itself three times, for example, 3 x 2 = 6.

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What is the difference between a pattern and a sequence?

Back

A pattern is a repeated arrangement of numbers or shapes, while a sequence is a specific order of numbers that follows a rule.

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What is the hundreds chart used for?

Back

The hundreds chart is a tool to help visualize numbers and their relationships, often used to identify patterns.

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What does 'counting by 5's' look like?

Back

Counting by 5's means adding 5 to the previous number, resulting in a sequence like 5, 10, 15, 20.