Unit 4 add/sub part 1

Using a mental strategy solve

6 + 6 =

• 10

• 12

• 14

• 16

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Using a mental strategy solve

15 - 6 =

• 7

• 8

• 9

• 10

Tags

CCSS.1.OA.C.6

Using a mental strategy solve

11 + 7

• 117

• 20

• 16

• 18

Tags

CCSS.1.OA.C.6

Using a mental strategy solve

20 - 14 =

• 6

• 5

• 33

• 34

Tags

CCSS.1.OA.C.6

Which repeated addition equation shows the total number of squares in the rectangle?

• 5 + 5

• 2 + 2 + 2 +2

• 3 + 3

• 6 + 6

Tags

CCSS.2.OA.C.4

Which number is even?

• 21

• 35

• 41

• 18

Which of the following expressions will have an even sum?

• 7 + 8

• 6 + 6

• 11 + 2

• 3 + 4

Tags

CCSS.2.OA.C.3

Which expression could you use to show the number of apples on the array?

• 2 + 2 + 2

• 3 + 3 + 3

• 4 + 4 + 4

• 5 + 5 + 5

Tags

CCSS.2.OA.C.4

Tim found the total number of circles by adding 2 + 2 + 2 + 2.

Which expression is another way to find the total number of spoons?

• 4 + 4

• 5 + 5

• 2 + 2 + 2

• 4 + 2

Tags

CCSS.2.OA.C.4

How would you describe the set of objects below?

• Even

• Equal

• Less than

• Odd

Tags

CCSS.2.OA.C.3