Mental Math

Add using mental math:
  45
+24
____

• 69
• 88
• 96
• 21

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Add using mental math:
 
  72
+16
____

• 88
• 54
• 64
• 66

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

9 x 3 =

• 18
• 27
• 36
• 25

Tags

CCSS.3.OA.C.7

Double 33

• 66
• 16.5
• 44
• 6

Tags

CCSS.2.NBT.A.2

smallest 3-digit number?

• 200

• 999

• 111

• 100

Tags

CCSS.4.NBT.A.1

Write the numeral "Seven thousand seventeen __________"

• 7007

• 7017

• 7117

• 7071

What is 100 more than 50?

• 150

• 105

• 51

• 501

Tags

CCSS.2.NBT.B.8

There are two wheels in one bicycle. How many wheels are there in 5 bicycles?

• 10

• 20

• 50

• 30

Tags

CCSS.3.OA.A.3

_________ + 8 = 16

• 4

• 6

• 10

• 8

Tags

CCSS.1.OA.D.8

40 + 12 = ______

• 42
• 52
• 62
• 24

Tags

CCSS.2.NBT.B.5