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PRIME MATHgazine Junior
Puzzles, Challenges, and More !
Volume 1 Issue 2 October 2010
Dog Pounds
Some dogs weigh the same. Figure out the weight of each dog.
is_____ pounds.
40 lbs
30 lbs
35 lbs
is_____ pounds.
is _____ pounds.
is_____ pounds.
100 lbs
90 lbs
60 lbs
is_____ pounds.
is_____ pounds.
House Number Mix Up
Use the clues to figure out the addresses.
1. ___ ____ ____ ____
????
2.___ ____ ____ ____
A B
C D
E
F
G
H
●D=B+C
●E+H-1=G
● A = 2B
● G = 3H
● C - 1 =A + B
● E + F + G + H = 24
● A and B are the only even numbers.
● No number equals 0
PRIME MATHgazine Junior
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Page 1
Strawberries
Use 0, 1, 2, 3, and 5 to make different two- digit even
numbers. Use each digit only once in each number.
Use 0, 1, 2, 3 and 5 to make different two- digit odd numbers. Use each
digit only once in each number.
Use 5, 6, 7, 8 and 9 to make two digit numbers that are divisible by 3. Use
each digit only once in each number.
Use 5, 6, 7, 8 and 9 to make two digit numbers that are divisible by 4. Use
each digit only once in each number.
PRIME MATHgazine Junior
Page 2
Day Dilemma
What is the day?
1) If today is Monday January 3rd, what is the
day that is 3 days after 2 days after tomorrow?
___________
Day of the week
___________
Month and Day
2) If today is Wednesday October 9th, what
is the day that is 1 week before 2 days after
yesterday?
___________
Day of the week
___________
Month and Day
3) If today is Friday, February 13, what is the
day that is 2 weeks after 2 days before yesterday?
___________
Day of the week
___________
Month and Day
PRIME MATHgazine Junior
Page 3
Cross Number
Across
1. Number of minutes in
8 hours and 54 minutes.
4. 444 ÷ 2
5. 10,000 + 9,692
8. Greatest 4- digit number
Down
1. Sum of the digits = 3x5
2. Sum of the digits is 28 ÷ 2
3. Sum of the digits is 1/2 x 24
6. Both digits are divisible by 9.
7. Sum of the digits is one less than 3.
PRIME MATHgazine
Puzzles, Challenges and More
Published by:
The Center for Practice,
Research and Innovation
in Mathematics Education
Hannah Jones, Editor
Discovery Hall, Suite 212
PO Box 875703
Tempe, AZ 85287-5703
480-727-0910 (Fax)
[email protected]
http://prime.asu.edu
© 2010 PRIME Center
Across
1. √49
2. 32
4. 22 x 7
5. 2 minutes more than 1
hour.
7. 12 x 22 x 42
10. The 3- digit number is
divisible by 9.
11. 23
Down
1. 8 x 9
3. 112
6. 25 x 347
8. Greatest 2- digit number.
9. Smallest prime number.
PRIME MATHgazine Junior
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