Mental Addition

Find the missing number

44 + ____= 50

• 10

• 7

• 3

• 6

Tags

CCSS.1.OA.A.1

Find the missing number

10 + _____ = 50

• 20

• 10

• 50

• 40

Tags

CCSS.2.OA.A.1

69 + 30

• 99

• 89

• 100

• 19

Tags

CCSS.2.NBT.B.5

55+69

• 124

• 114

• 134

• 126

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Use mental math to solve.

120 + 42 + 80

Tags

CCSS.2.NBT.B.5

92 + 85 + 135 =

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Solve:
246 + 553 = ?

• 313

• 799

• 809

• 307

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Find the sum of 12908; 456; 7843

Tags

CCSS.6.NS.B.3

485 + 409 =

• 984

• 894

• 804

• 1,884

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Lilly finished 3 math problems for morning work. She finished 5 more during math class and 6 more for homework. How many math problems did she complete in all?

• 11

• 8

• 14

• 2

Tags

CCSS.2.OA.A.1