Subtraction

15-8

• 7

• 6

• 5

• 4

200-120

• 50

• 80

• 65

• 90

When you are subtracting, do you use a + or - ?

• +
• -

Tags

CCSS.2.NBT.B.5

CCSS.2.NBT.B.7

CCSS.2.NBT.B.9

CCSS.2.OA.A.1

What does it mean to subtract something?

• add it
• take it away

Tags

CCSS.2.NBT.B.5

CCSS.2.OA.A.1

CCSS.2.OA.B.2

What is 10 - 6?

• 4
• 6
• 2
• 8

Tags

CCSS.2.NBT.B.5

CCSS.2.OA.B.2

What number is showing?

• 37
• 27
• 47
• 100

Tags

CCSS.2.NBT.A.1

CCSS.2.NBT.A.3

CCSS.2.NBT.A.4

How do you regroup a ten?

• move one ten to the ones column
• move the ones to the tens column
• change all tens to ones

Tags

CCSS.2.NBT.A.1

CCSS.2.NBT.B.5

CCSS.2.NBT.B.7

13 - 8 =

• 4
• 5
• 12
• 2

Tags

CCSS.2.NBT.B.5

CCSS.2.OA.B.2

I have 3 crayons. I wish I had 10 crayons. How many crayons do I need?

• 4 crayons
• 2 crayons
• 7 crayons

Tags

CCSS.2.NBT.B.5

CCSS.2.OA.A.1

13-9=

• 22
• 3
• 4
• 5

Tags

CCSS.2.NBT.B.5

CCSS.2.OA.B.2