Algebra tiles to add Integers
1. A change in temperature.(-25)+(-13)+(+3)+(+8)=
_(38) + (+11)=27 degrees Celcius
negative positive
2. A change in having money with
losing it....then you owe and have.
5. Submarine starts at high level then goes down.
(-135) + (-77)+ (+72)=
+(122) + (284)=406
first 2 negative then last positive.
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