TITLE:  I've Got Your Number

AUTHOR:  Paula Daniel; Payson Elementary, AZ

GRADE LEVEL/SUBJECT:  4-6
Intermediate (adaptable for others). This activity is a math
review.

OVERVIEW:  This activity can be used as a review of material
covered in any subject.  The number of items can be
increased or decreased as needed.

PURPOSE:  To review material covered in a fun way.  The
students pay close attention because they're never sure when
their answer will be called.

OBJECTIVE(s):  Students will review concepts, facts, or
other skills.

RESOURCES/MATERIALS: Unlined cards.  Series of problems or
questions.

ACTIVITIES AND PROCEDURES:
  Prepare a set of cards.  To make a set of cards, plan a
series of problems, making sure not to duplicate any of the
answers.  Starting with the first card, write a problem on
the lower half of the card.  The answer is on the top of the
next card along with the next problem.  Continue generating
problems until you have at least one card for each student.
  A card or cards are dealt to each player.  Choose one
student to start the activity by reading the problem on the
bottom of this card to the class.  All other students listen
carefully to see if their card contains the answer.  The
student who has the answer reads the answer aloud and then
reads the rest of his card to the class.  Again, all
students listen to see if
their  card has the answer.  Play continues until all cards
have been answered and the person who started the review
would have the answer to the last problem read.

Sample questions.

2 (at top of card)
I have two.  Who has nine times this number?

18(at top of card)
I have eighteen.  Subtract three from this.  What is the
answer?

15
I have fifteen.  Divide this number by three.  What's the
answer?

5
I have five.  Multiply this number by four.  What is the
answer?

20
I have twenty.  Subtract seventeen from this.  Who has the
answer?

3
I have three.  Multiply this number by seven.  What's the
answer?

21
I have twenty-one. Who has ten more than this number?

31
I have thirty-one.  Subtract twenty from this.  What is your
answer?

11
I have eleven.  Multiply this number by six.  If you add
four to that, what is our answer?

70
I have seventy.  What is half of that?

35
I have thirty-five.  Add one to this number.  Now divide by
nine.  Who has that number?

4
I have four.  Triple this number.  Multiply that answer by
two. What do you have?

24
I have twenty-four.  What is this number multiplied by
three?

72
I have seventy-two.  Subtract twelve.  What is your answer?

60
I have sixty.  Divide this number by ten.  What is your
answer?

6
I have six. Multiply this number by nine.  What is your
answer?

54
I have fifty-four.  What is fourteen less than this number?

40
I have forty.  Subtract the number of sides in a square.
What is your answer?

36
I have thirty-six.  What is ten less than this number?

26
I have twenty-six.  Subtract two dozen from this.  What
is the answer?