Adding Tens

I have 2 tens, I add 3 more tens. How many tens do I have total?

• 30

• 40

• 50

• 60

Answer explanation

20+30=50

Tags

CCSS.1.NBT.B.2

CCSS.1.NBT.C.4

CCSS.1.NBT.C.5

I have 3 tens, I add 6 tens. How many tens do I have all together?

• 80

• 90

• 100

• 110

Answer explanation

30+60=90

Tags

CCSS.1.NBT.B.2

CCSS.1.NBT.C.4

Mia found 50 shells on the beach, Liam found 30 more. How many shells did they find all together?

• 80

• 90

• 100

• 110

Answer explanation

50+30=80

Tags

CCSS.1.NBT.C.4

Josh has 30 pairs of shoes. Carson has 10. How many pairs of shoes do they have all together?

• 10

• 20

• 30

• 40

Answer explanation

30+10=40

Tags

CCSS.1.NBT.C.4

CCSS.1.OA.A.1

Savannah has 6 packages of 10 pencils each. How many pencils does she have all together?

• 50

• 60

• 70

• 80

Tags

CCSS.1.NBT.B.2

CCSS.1.NBT.C.4

Olivia has 3 boxes with 10 bows in each box. How many bows does she have all together?

• 30

• 40

• 50

• 60

Tags

CCSS.1.NBT.C.4

CCSS.1.OA.A.1

80+10=

• 70

• 80

• 90

• 100

Answer explanation

80+10=90

Tags

CCSS.1.NBT.B.2

CCSS.1.NBT.C.4

40+60=

• 70

• 80

• 90

• 100

Answer explanation

40+60=100

Tags

CCSS.1.NBT.C.4