Composing and Decomposing Numbers

Front

What does it mean to compose a number?

Back

To compose a number means to combine smaller numbers to make a larger number.

Tags

CCSS.1.OA.A.1

Front

What does it mean to decompose a number?

Back

To decompose a number means to break down a larger number into smaller parts.

Front

Which numbers compose 10?

Back

1 and 9, 2 and 8, 3 and 7, 4 and 6, 5 and 5.

Tags

CCSS.1.OA.A.1

Front

Which numbers compose 5?

Back

0 and 5, 1 and 4, 2 and 3.

Tags

CCSS.1.OA.A.1

Front

Which numbers compose 12?

Back

0 and 12, 1 and 11, 2 and 10, 3 and 9, 4 and 8, 5 and 7, 6 and 6.

Tags

CCSS.1.OA.A.1

Front

Which numbers compose 2?

Back

0 and 2, 1 and 1.

Tags

CCSS.1.OA.C.6

Front

What is the sum of 1 and 9?

Back

10.

Tags

CCSS.2.OA.C.3

Front

What is the sum of 2 and 3?

Back

5.

Tags

CCSS.2.OA.C.3

Front

What is the sum of 4 and 6?

Back

10.

Tags

CCSS.2.OA.C.3

Front

What is the sum of 0 and 9?

Back

9.

Tags

CCSS.1.OA.B.3