Tens and Ones

• 80
• 8
• 9

Tags

CCSS.2.OA.A.1

• 1 Ten  
  4 Ones
• 1 Ten
  8 Ones
• 4 Tens
  1 One
• 3 Tens
  4 Ones

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

• 3 Ten
  3 Ones
• 0 Ten
  5 Ones
• 3 Tens
  5 Ones
• 5 Tens
  3 Ones

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

How many?

• 31
• 23
• 3
• 2

Tags

CCSS.1.NBT.A.1

How many?

• 5
• 100
• 50
• 4

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

• 2 groups of 10 and 6 leftover
• 3 groups of ten and 6 leftover
• 3 groups of ten and 3 leftover
• 1 group of 10 and 4 leftover

Tags

CCSS.2.OA.C.3

How many tens and ones are the cubes showing?

• 30 tens and 5 ones
• 3 tens and 5 ones

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

67=

• 5 tens and 8 ones
• 6 tens and 7 ones
• 7 tens and 6 ones
• 1 ten and 4 ones

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

How are 20 and 2 different?

• They are different numbers.
• Because they are.
• 20 has 2 groups of ten and 2 has 2 ones.
• They are the same.

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

79, ______, _______, 82

• 80, 81
• 79, 80
• 50, 52
• 69, 70

Tags

CCSS.1.NBT.A.1