Addition and Subtraction Numbers Through 50

When we add two numbers and do the addition we use the symbol

• +

• -

• =

• x

Taking away a smaller number from the big number is called

• addition

• subtraction

9 + 8 =

37 + 5 =

Lilly finished 3 math problems for morning work. She finished 5 more during math class and 6 more for homework. How many math problems did she complete in all?

• 11

• 8

• 14

• 2

Jake found 6 pens in his desk.  He found 5 more on the floor.  How many pens does Jake have now?

• 11

• 10

• 12

What is 10 + 5=

• 12

• 105

• 15

• 20

10 + 7

• 11

• 107

• 17

• 20

9 + 3

• 11

• 12

• 10

• 9

Miss Link has 23 students. Mrs. Mill has 22 students. Which statement tells how many students they have altogether?

• Miss Link has 1 more student.

• Mrs. Mill has less students.

• They have 45 students altogether.

• They have 1 student altogether.