Chapter 2 Math Vocabulary Review

What is an array?

• Objects displayed in rows and columns.

• Each group has the same number of objects.

• When you count objects in equal groups of two or more.

• When you use the same addend over and over.

Tags

CCSS.3.OA.A.1

What are equal groups?

• When you use the same addend over and over.

• When you count objects in equal groups of 2 or more.

• When each group has the same number of objects.

• When objects are displayed in rows and columns.

Tags

CCSS.2.OA.C.3

What is skip counting?

• An odd number of objects has 1 let ver when counted by 2’s.

• When you count objects in equal groups of two or more.

• Each group has the same number of objects.

• When you use the same addend over and over.

Tags

CCSS.1.NBT.A.1

What is repeated addition?

• An even number of objects can be counted by 2s.

• Objects displayed in rows and columns.

• An odd number of objects has 1 left over when objects counted by 2s.

• When you use the same addend over and over.

Tags

CCSS.2.OA.C.4

What is an odd number?

• When there is 1 object left over When counted by 2s.

• Count objects in equal groups of two or more.

• When the number of objects can by counted by 2s.

• To use the same addend over and over.

Tags

CCSS.2.OA.C.3

What is an even number?

• Objects displayed in rows and columns.

• Each group has the same number of objects.

• When the number of objects can by counted by 2s.

• When there is 1 object left over when counted by 2s.

Tags

CCSS.2.OA.C.3

Which answer correctly skip counts by 2s?

• 4, 8, 12, 16, 20

• 10, 12, 14, 16

• 5, 10, 15, 20

• 3, 6, 9, 12

Tags

CCSS.1.NBT.A.1

What are the next three numbers 20, 25, 30, ___, ____, ____?

• 35,45,55

• 35,40,45

• 40,45,50

• 40,50,60

Tags

CCSS.2.NBT.A.2

Describe this array using a number sentence.

• 3 + 3 + 3 = 9

• 4 + 4 + 4 + 4 =16

• 4 + 4 =8

• 3 + 3 + 3 + 3 = 12

Tags

CCSS.2.OA.C.4

What answer shows an odd number?

• 4

• 0

• 16

• 19

Tags

CCSS.2.OA.C.3