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Positive aspects of the introduction

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What happened with my students

Level 3 problem December 2014

The 500 Problem

Here’s a subtraction problem.

In the two subtraction sums below, a and b each stand for digits.

If the two subtraction sums give the same answer, what digits do a and b stand for?

500
-ab5

    

5ab
-500

Level 2 problem December 2014

Little Magic Squares

Tui has just discovered magic squares. Magic squares are grids of numbers where the numbers in each row, column and diagonal all add to give the same sum.
She decided to make all of the 3x3 magic squares that she could just using the numbers 1, 2 and 3.
How many could she make?

Level 1 problem December 2014

Well, Well!

Freddo has had a nice swim in the bottom of the well and decides that now is the time to get out.
Freddo climbs 3m up the wall of the well and then rests.
But the wall is slippery and he then slips down 1m. He is so tired he goes to sleep for the rest of the day.
The next day he does the same thing - climbs up 3m, slips back 1m, and goes to sleep.

Level 3 problem November 2014

My Dogs

I have three dogs. If I add their ages together I get 15.
If I multiply their ages together I get 45.
How old are my dogs?

 

Level 2 problem November 2014

A Fishy Problem

Millie has just got a new pet fish.
The pet shop owner told her that she needs to put the fish into exactly one litre of water.
The problem is she can only find two containers.
One holds seven litres and the other holds four litres.
Can you use these two containers to put exactly one litre of water into the fish tank?

Level 1 problem November 2014

Gremlins

Oh no, gremlins have been in and covered up some numbers on the chart. Can you put the equations back together?

 

Level 3 problem September 2014

Lollies, Lollies, Lollies

On Monday, Sam, Sunny and Sylvia shared some lollies that their mother had given them.
Sunny got twice as many lollies as Sam.
Sylvia got three times as many lollies as Sam.


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