Mastering Two-Digit Addition Techniques

What is the sum of 4, 3, and 1?

• 10

• 9

• 8

• 7

Tags

CCSS.1.OA.A.1

When adding 2, 4, and 3 in the tens column, what is the result?

• 8

• 9

• 10

• 11

Tags

CCSS.2.NBT.B.6

What is the final result when adding 24, 43, and 31?

• 99

• 100

• 97

• 98

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

In the second example, what digits are added from the ones column?

• 1, 7, 1

• 3, 1, 2

• 4, 3, 1

• 2, 4, 3

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the sum of 1, 7, and 1 from the ones column in the second example?

• 10

• 11

• 9

• 8

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What digits are added from the tens column in the second example?

• 4, 3, 1

• 1, 7, 1

• 3, 1, 2

• 2, 4, 3

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the final result of adding 31, 17, and 21?

• 71

• 70

• 69

• 68

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2