Topics 8 & 9

​ ​ Match the equations with the correct property of addition.

• (2 + 3) + 4 =

  (4 + 2) +3

• Associative (Grouping) Property
• 17 + 6 + 11 =

  6 + 11 + 17

• Commutative Property

• (1 + 17) + 2 =

  1 + (17 + 2)

• Associative (Grouping) Property

• 18 + 0 = 18

• Commutative Property
• 22 + (35 + 17) = (22 + 35) + 17

• Identity (Zero) Property

Tags

CCSS.1.OA.B.3

Round to the nearest tens place.

738

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest tens place.

291

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest tens place.

21

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest hundreds place.

163

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest hundreds place.

852

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest hundreds place.

439

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest tens place, then find the sum.

221 + 78

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.B.4

CCSS.5.NBT.B.7

Round to the nearest tens place then find the sum.

19 + 24

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.B.4

CCSS.5.NBT.B.7

Round to the nearest hundreds place then subtract to find the difference.

513 - 257

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.B.4

CCSS.5.NBT.B.7