Compose and decompose numbers up to 100

Decompose 47

• 4 ones and 7 tens

• 4 tens and 7 ones

• 40 tens and 70 ones

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

Decompose 85

• 8 tens and 5 ones

• 80 tens and 50 ones

• 8 ones and 5 tens

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

I am a number with eight tens and three ones. What number am I?

Tags

CCSS.1.NBT.A.1

I am a number with 4 tens and 9 ones. What number am I?

Tags

CCSS.1.NBT.A.1

99

• 9 tens and 9 ones

• 90 tens and 9 ones

• 9 hundreds and 9 ones

• 9 tens and 0 ones

Tags

CCSS.2.NBT.A.1B

80 = 60 + __

Tags

CCSS.1.NBT.C.5

100 = 99 + __

Tags

CCSS.1.NBT.C.4

CCSS.1.OA.D.8

45 = 4 tens and __ ones

• 5

• 45

• 40

• 50

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

100 = __ tens

Tags

CCSS.2.NBT.A.1B

100 = __ ones

• 1000

• 100

• 10

• 1

Tags

CCSS.2.NBT.A.1B