Unit 2: Addition and Subtraction to 20

Lily has some pencils. How many more does Lily have than Sam?

• 5
• 9
• 1
• 2

Tags

CCSS.2.OA.A.1

Sam and Lily have erasers. How many fewer erasers does Lily have?

• 6
• 4
• 10
• 2

Tags

CCSS.2.OA.A.1

Find the sum.

• 8
• 6
• 7
• 9

Tags

CCSS.2.OA.C.3

Find the sum.

• 9
• 10
• 8
• 11

Tags

CCSS.1.OA.A.1

Which number sentence does NOT make ten?

• 4+7
• 8+2
• 5+5
• 3+7

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What number belongs in the box.

• 3
• 4
• 6
• 5

Tags

CCSS.1.OA.A.1

Find the difference.

• 6
• 8
• 5
• 10

Tags

CCSS.2.OA.A.1

Find the difference.

• 8
• 15
• 9
• 10

Tags

CCSS.2.OA.A.1

How many dots should be in the missing part?

• 3
• 6
• 4
• 2

Tags

CCSS.1.OA.A.1

Which equation would balance the scale?

• 5+4
• 3+6
• 5+5
• 2+10

Tags

CCSS.1.OA.A.1