Product SquareArrange the given numbers in a three by three grid to obtain the diagonal, row and column products. 
Drag the numbers into the yellow cells to make the given row, column and diagonal products.
The numbers in the yellow circles have been calculated by multiplying the three numbers in the cells that the arrows points to. Four numbers have already been placed on the grid.
Congratulations!
Claim your trophy by clicking on the red button
below.
Are there any other ways to make this product square using these numbers?
Your answer is not correct.
The products of each row, column and diagonal should be as given. Try again.
1
2
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5
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7
8
9
This is Product Square level 4. You can also
try:
Level 1
Level 2
Level 3
Level 5
Level 6
Level 7
Level 8


Transum.orgThis web site contains over a thousand free mathematical activities for teachers and pupils. Click here to go to the main page which links to all of the resources available. Please contact me if you have any suggestions or questions. 
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Numeracy"Numeracy is a proficiency which is developed mainly in Mathematics but also in other subjects. It is more than an ability to do basic arithmetic. It involves developing confidence and competence with numbers and measures. It requires understanding of the number system, a repertoire of mathematical techniques, and an inclination and ability to solve quantitative or spatial problems in a range of contexts. Numeracy also demands understanding of the ways in which data are gathered by counting and measuring, and presented in graphs, diagrams, charts and tables." Secondary National Strategy, Mathematics at key stage 3 

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A number is divisible by 2 if its last digit is even (0,2,4,6 or 8)
A number is divisible by 3 if the sum of its digits is divisible by 3.
A number is divisible by 4 if the number's last two digits are divisible by 4.
A number is divisible by 5 if its last digit is a 0 or 5.
A number is divisible by 6 if it is divisible by 2 and 3 (see rules above).
A number is divisible by 7 if 5 times the last digit added to the number made from the other digits is divisible by 7.
A number is divisible by 8 if the last three digits form a number that is divisible 8.
A number is divisible by 9 if the sum of the digits is divisible by 9.
A number is divisible by 10 if its last digit is 0.
A number is divisible by 11 if the alternating sum of its digits is divisible by 11. Alternating sum means ab+cd+... â€“ m
A number is divisible by 12 if it is divisible by 3 and 4.
The projectable version of the divisibility tests can be found here: Divisibility Tests 212
There is a printable worksheet to go with this activity.
The divisibility test for 7 is thanks to a 12year old pupil, Chika Ofili, from Westminster School. You can read more about it here.
Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you donâ€™t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.
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