Decomposing Numbers: Tens and Ones Challenge

What does it mean to decompose a number?

• To find the square root of a number

• To split a number into its individual digits

• To multiply a number by 10

• To add numbers together

How do we break apart the number 34?

• 34 and 0

• 30 and 4

• 3 and 4

• 30 and 3

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

How do we decompose numbers into tens and ones?

• By adding the digits together

• By dividing by 10

• By using ten frames

• By subtracting 10

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What is the purpose of decomposing numbers?

• To understand the value of each digit

• All of the above

• To make addition easier

• To prepare for multiplication

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What are the tens and ones in the number 26?

• 2 and 6

• 20 and 6

• 26 and 0

• 10 and 16

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

How many tens are in the number 43?

• 7

• 3

• 4

• 40

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What does the number 43 decompose into?

• 30 and 13

• 43 and 0

• 4 and 3

• 40 and 3

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

Without using ten frames, how do we decompose the number 38?

• 3 and 8

• 30 and 8

• 38 and 0

• 20 and 18

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What are the tens and ones in the number 57?

• 50 and 7

• 5 and 7

• 57 and 0

• 40 and 17

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

Which of the following is not a correct way to decompose a number?

• Splitting it into even and odd parts

• Identifying the place value of each digit

• Breaking it into tens and ones

• Using ten frames to visualize

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C