Adding with Groups of Ten

You are able to use what you know about addition to help you add groups of ten.

• True

• False

Tags

CCSS.2.OA.A.1

Which number sentence does this picture represent?

• 5 + 4 =

• 5 + 3 =

Tags

CCSS.2.OA.A.1

What does this addition show you?

• 5 tens + 3 tens

• 6 tens + 2 tens

Tags

CCSS.2.OA.A.1

5 tens + 3 tens = ?

• 9 tens

• 8 tens

Tags

CCSS.2.NBT.A.1B

Adding sets of tens is really the same as adding numbers that end in zero.

• True

• False

Tags

CCSS.5.NBT.B.7

Which number sentence does this picture represent?

• 50 + 40 =

• 50 + 30 =

Tags

CCSS.2.OA.A.1

50 + 30 ?

• 82

• 80

Tags

CCSS.2.OA.A.1

What does this addition problem show you?

• 20 + 20 = ?

• 21 + 21 = ?

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

20 + 20 = ?

• 50

• 40

Tags

CCSS.2.OA.A.1

What does this addition problem show you?

• 30 + 20 = ?

• 30 + 10 = ?

Tags

CCSS.2.OA.A.1