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Re: Uncl: card game
Posted:
Aug 18, 1995 2:13 PM


LiPing Helen Hsu Chan wrote: >A colleague of mine is looking for a card game he heard about that >requires students to use four numbers to calculate a total of 1 to 24. >Apparently there are dice involved somehow, he thinks possibly to >determine the target number. The person who told my colleague >about the game said that because the target number can be anything >from 1 to 24, thus making it more challenging.
>If anyone out there knows what game he's looking for, please email me. >Thanks.

JHAMMON@TULSAJC.TULSA.CC.OK.US wrote
>LiPing, you ask about a card game using 4 numbers and coming up >with solutions from 1 to 24, and dice being involved.
>I believe the game you are asking about is "Number Challenge Game" >from Kaidy Educational Resources, P.O. Box 831853, Richardson, >TX 750831853 and their phone number is 18003652439. The game >includes a set of 4 die giving equal probablities from 1 to 24. They also >have a "Numbers Challenge Guide" with additional ideas in it.

Since we were getting so many phone calls from teachers for more information about Numbers Challenge, we decided to post a response in order to get everybody up to speed all at once.
Numbers Challenge is a great game for mental math! Kids love playing it, and we even hold tournaments locally where they can compete and win prizes. Numbers Challenge meets these NCTM Standards for Teaching Math: Math as Problem Solving, Math as Reasoning, Number & Number Relationships, Math as Communication, Math Connections, Number Systems & Number Theory, Patterns & Functions, Patterns & Relationships, and Computation & Estimation.
There are twentyfour cards in the game; each card has four numbers on it. You roll the dice to give you your target number between 1 & 24, then you add, subtract, multiply &/or divide the four numbers on a card to reach the target number. Since the target number changes each time, and there are twentyfour different cards, there are at least 600 challenges in each game (including calculating to a target number of 0, for practice). This means the kids can't just memorize the solutions.
It's been our experience that one of the most important concepts Numbers Challenge teaches is order of operations. If you don't do multiplication & division before addition & subtraction, your answer will be incorrect. Kids seem to have a hard time remembering to do that, but in order to win at Numbers Challenge, they have to obey the rules regarding order of operations. Younger kids may not be able to figure that 3+24x1=1, but they can figure that 3+2=5, 4x1=4, then 54=1 (final target number).
Depending on which two dice you use, your target number can be 1 to 6, 1 to 12, 1 to 18, or 1 to 24. This feature allows the game to be adapted for beginners, intermediates, & experts. It's challenging even for adults!
If the card you draw has the numbers 1,2,3 & 4 on it, below is an example of how you could reach each target number from 1 to 24 (remember, there are twentyfour cards, each with a different set of four numbers):
3 + 2  4 x 1 = 1 4  3 + 2  1 = 2 4 + 2  3 x 1 = 3 4 + 3  2  1 = 4 4 + 3  2 x 1 = 5 4 + 3  2 + 1 = 6 (4+3) x (21) = 7 4 + 3 + 2  1 = 8 4 x 3  2  1 = 9 4 + 3 + 2 + 1 =10 4 x 2 + 3 x 1 =11 4 x 2 + 3 + 1 =12 4 x 3 + 2  1 =13 3 x 4 x 1 + 2 =14 4 x 3 + 2 + 1 =15 4 x 2 x (31) =16 (4+1) x 3 + 2 =17 3 x 1 x (2+4) =18 (4+2) x 3 + 1 =19 4 x 1 x (2+3) =20 (4+3) x (2+1) =21 ( 4x31 ) x 2 =22 4 x 3 x 2  1 =23 ( 3+2+1 ) x 4 =24



