Subtraction mental math

47-30=

• 27
• 20
• 17
• 14

Tags

CCSS.2.NBT.B.5

56-36=

• 20
• 35
• 30
• 25

Tags

CCSS.2.NBT.B.5

Subtract using mental math:
  50
- 10
____

• 40
• 60
• 30
• 10

Tags

CCSS.2.NBT.B.5

Subtract using mental math:

75 - 25

• 50

• 25

• 75

Tags

CCSS.2.NBT.B.5

49 - 0 =

• 48

• 94

• 14

• 49

Tags

CCSS.2.NBT.B.5

Which number sentence is wrong?

• 8 + 5 = 13

• 13 - 5 = 8

• 5 + 8 = 13

• 8 - 5 = 13

Tags

CCSS.1.OA.B.3

If 12 add 8 is 20, what is 20 subtract 8?

• 2

• 20

• 8

• 12

math facts
30-1

• 29
• 31
• 32

Tags

CCSS.1.OA.A.1

What does it mean to subtract something?

• add it
• take it away

Tags

CCSS.7.NS.A.1C

6 - 6 = ?

• 0
• 12

Tags

CCSS.2.NBT.B.5