Adding 10 to two digit numbers

Mary had 42 kids in her house for trick or treat before 6 pm. After 6pm she had 10 more kids for trick or treat. How many did she have in all?

• 61

• 52

• 78

• 53

Tags

CCSS.2.NBT.B.6

11 + 10

• 21

• 41

• 35

• 24

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

add 10 to 89

• 91

• 81

• 109

• 99

Tags

CCSS.1.NBT.C.5

What is the answer to 10 + 22 ?

• 42

• 55

• 32

• 31

Tags

CCSS.2.NBT.B.5

If Jenny has 19 apple and Tommy has 10, how many apples do they have if they add them together?

• 28

• 29

• 32

• 25

Tags

CCSS.2.OA.A.1

If Abby has 15 puppies but wants 10 more, how many puppies does she want in total?

• 31

• 44

• 24

• 25

Tags

CCSS.2.OA.A.1

33 + 10 =

• 41

• 42

• 43

• 44

Tags

CCSS.2.NBT.B.5

What is 77 + 10 ?

• 97

• 90

• 87

• 86

Tags

CCSS.1.NBT.C.5

Is it true or false? 31 + 10 = 40

• True

• False

what is the sum of 43 and 10?

• 63

• 53

• 54

• 57

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6