Mental Math

How many more should I add to 97 to make 100?

• 2

• 3

• 1

• 100

Tags

CCSS.1.NBT.C.5

26+14

• 12

• 34

• 40

• 30

Tags

CCSS.2.NBT.B.5

120+80=

• 182

• 128

• 40

• 200

Tags

CCSS.2.NBT.A.1

CCSS.2.NBT.A.3

CCSS.2.NBT.B.7

240 - 90 =

• 150
• 140
• 130
• 120

Tags

CCSS.2.NBT.B.8

What pair of numbers add up to make 100? Choose 2 numbers.

• 15

• 27

• 85

• 64

Tags

CCSS.1.NBT.C.5

What numbers are missing?

2 hundreds + __________ = 9 hundreds

6 tens + _________ = 10 tens

• 7 hundreds and 4 tens

• 7 tens and 4 ones

• 2 and 6

• 4 hundreds and 7 tens

Tags

CCSS.2.NBT.A.1

CCSS.2.NBT.B.7

9 tens and 10 ones make ...

• 10

• 100

• 1,000

• 910

Tags

CCSS.2.NBT.A.1B

9 hundreds and 10 tens make ...

• 910

• 1,000

• 100

• 10

Tags

CCSS.2.NBT.A.3

Fill in the blank. What is the missing number?

Tags

CCSS.2.NBT.B.7

Fill in the blank. What is the missing number?

Tags

CCSS.2.NBT.B.7