Add Two Digit Numbers with Regrouping

23 + 37 = n, what is n?

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Addends can be regrouped and the sum remains the same because of the __________.

• Identity Property of Addition

• Commutative Property of Addition

• Associative Property of Addition

• estimate

Tags

CCSS.1.OA.B.3

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

44+39=

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Solve the addition problem with regrouping.

Answer explanation

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Fill in the blanks

b

c

d

a

100

92

130

40

Tags

CCSS.2.NBT.B.6

Solve.

• 77

• 71

• 84

• 81

Tags

CCSS.2.NBT.B.7

Add the two numbers. 

• 98

• 90

• 88

• 97

Tags

CCSS.2.OA.A.1