How many zero pairs can be created in the model below?

2 x tiles and 1 negative x tile. 3 plus sign tiles and 2 negative tiles.

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1 Answer

Represent the tiles as:

 

[x] [-x]   [+] [-]

[x]          [+] [-]

               [+]

 

Some zero combinations:

[x][-x]

[-x][x]

[x][-][x]

[x][+][-][x]

[+][x][+][-][x]

[x][+][-x]

[-][x][x]

[-][x][+][x]

[+][x][+][-x]

[-][-x][-][x]

[-][x][-][-x]

[-][-x][+][-][x]

Take your pick!

by Top Rated User (764k points)

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