What is the difference between addition and subtraction?

Addition combines numbers, while subtraction removes numbers.

What is a number line?

A line that represents numbers in order, used for addition and subtraction.

What does it mean to 'add'?

To combine two or more numbers to get a total.

What does it mean to 'subtract'?

To take away one number from another.

What is a fact family?

A group of related addition and subtraction facts using the same numbers.

What is the commutative property of addition?

Changing the order of numbers does not change the sum.

What is the associative property of addition?

Changing the grouping of numbers does not change the sum.

What is a word problem in math?

A math problem written in the form of a story or real-life situation.

Flashcard

•

Mathematics

•

2nd Grade

•

Practice Problem

•

Hard

•

CCSS

1.OA.C.6, 2.OA.A.1, 1.OA.A.1

Standards-aligned

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15 questions

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FLASHCARD QUESTION

Front

What is 3 + 11?

Back

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

FLASHCARD QUESTION

Front

What is 8 + 5?

Back

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

FLASHCARD QUESTION

Front

What is 5 + 6?

Back

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

FLASHCARD QUESTION

Front

What is 12 - 4?

Back

Tags

CCSS.2.OA.A.1

FLASHCARD QUESTION

Front

What is 6 + 7?

Back

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

FLASHCARD QUESTION

Front

What is the sum of two numbers?

Back

The result of adding two numbers together.

Tags

CCSS.1.OA.A.1

FLASHCARD QUESTION

Front

What is subtraction?

Back

The process of taking one number away from another.

Tags

CCSS.2.OA.A.1

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