Front

What is the sum of 11 and 5?

Back

The sum of 11 and 5 is 16.

Tags

CCSS.1.OA.A.1

Front

What is the sum of 7 and 8?

Back

The sum of 7 and 8 is 15.

Tags

CCSS.2.OA.C.3

Front

What is the result of subtracting 8 from 15?

Back

The result of subtracting 8 from 15 is 7.

Tags

CCSS.2.OA.A.1

Front

What is the sum of 13 and 7?

Back

The sum of 13 and 7 is 20.

Tags

CCSS.1.OA.A.1

Front

What is the result of subtracting 10 from 20?

Back

The result of subtracting 10 from 20 is 10.

Tags

CCSS.2.OA.A.1

Front

What is the definition of addition?

Back

Addition is the mathematical operation of combining two or more numbers to get a total.

Tags

CCSS.1.OA.A.1

Front

What is the definition of subtraction?

Back

Subtraction is the mathematical operation of taking one number away from another.

Front

What is a fact family in addition and subtraction?

Back

A fact family is a set of related addition and subtraction facts that use the same numbers.

Tags

CCSS.2.OA.C.4

Front

How can you check your addition?

Back

You can check your addition by using subtraction; if the sum plus the subtracted number equals the original number, it is correct.

Tags

CCSS.2.OA.A.1

Front

How can you check your subtraction?

Back

You can check your subtraction by using addition; if the difference plus the subtracted number equals the original number, it is correct.

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2