Doubles and Near Doubles

Front

What is the concept of doubles in addition?

Back

Doubles in addition refer to adding the same number to itself, such as 1+1, 2+2, or 3+3.

Tags

CCSS.2.OA.B.2

CCSS.1.OA.C.6

Front

What is a near double in addition?

Back

A near double is when you add a number to a double, such as 2+3 (which is near double of 2+2) or 4+5 (which is near double of 4+4).

Tags

CCSS.2.OA.B.2

CCSS.1.OA.C.6

Front

What is the sum of 1+1?

Back

The sum of 1+1 is 2.

Tags

CCSS.2.OA.B.2

CCSS.1.OA.C.6

Front

What is the sum of 8+7?

Back

The sum of 8+7 is 15.

Tags

CCSS.2.OA.B.2

CCSS.1.OA.C.6

Front

What is the sum of 4+4?

Back

The sum of 4+4 is 8.

Tags

CCSS.2.OA.B.2

CCSS.1.OA.C.6

Front

What is the sum of 6+5?

Back

The sum of 6+5 is 11.

Tags

CCSS.2.OA.C.3

Front

What is the sum of 1+2?

Back

The sum of 1+2 is 3.

Tags

CCSS.1.OA.A.1

Front

How can you use doubles to solve 8+7?

Back

You can use doubles by recognizing that 8+8 is 16, and then subtracting 1 to get 15.

Front

How can you use near doubles to solve 6+5?

Back

You can use near doubles by recognizing that 6+6 is 12, and then subtracting 1 to get 11.

Front

What is the relationship between doubles and addition facts?

Back

Doubles help students learn addition facts by providing a simple way to remember sums, as they can easily recall the result of adding the same number.

Tags

CCSS.2.OA.B.2

CCSS.1.OA.C.6