Basic Subtraction Strategies

Which repeated subtraction matches this problem?

• 15 - 3 = 12

  12 - 3 = 9

  9 - 3 = 6

  6 - 3 = 3

  3 - 3 = 0

• 15 - 3 = 12

  12 - 3 = 6

  6 - 3 = 3

  3 - 3 = 0

• 15 - 5 = 10

  10 - 5 = 5

  5 - 5 = 0

18 - 9 = ___ 

• 27

• 23

• 9 

• 8

Mrs. Wilson has 12 pencils in a box.  She hands out 5 of the pencils to her class.  How many pencils are left in the pencil box?

• 5

• 17

• 4

• 7

Carlos bakes 25 cupcakes.  She gave some cupcakes to her friends.  Now she has 7 cupcakes.  Which number sentence can be used to find how many cupcakes she gave away?

• 7 + 25 = ___

• 25 - ___ = 7

• __ + 7 = 25

• __ - 25 = 32 

20-8

• 11

• 12

• 13

• 14

Aylanie has 12 apples. Then she ate 2 apples. How many apples does she have left?

• apple

• 4 apples

• 10 apples

• 8 apples

Aylanie has 12 apples. Then she ate 2 apples. How many apples does she have left?

• 1 apple

• 4 apples

• 10 apples

• 8 apples

4-4=

• 8

• 2

• 6

• 0

6 - 6 =

6-5=

• 11

• 9

• 1

• 4