The zero pairs that can be created in the model 2 x tiles and 1 negative x tile. 3 plus sign tiles and 2 negative tiles is '12'.
What is zero pair?
A pair of numbers that add up to zero is referred to as a zero pair. The two numbers must contain both a positive and a negative number, according to the concept of a zero pair.
Combination of all zero pair:
The given data is, 2 x tiles and 1 negative x tile. 3 plus sign tiles and 2 negative tiles.
Rewrite the combinations as below,
[x] [-x] [+] [-]
[x] [+] [-]
[+]
Formation of zero pair 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]
Therefore, the total number of combinations used for making zero pair are '12'.
To know more about addition and subtraction of negative numbers, here
https://brainly.com/question/4915187
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