# Math

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How do problem solving using model addition and subtraction

## Similar Questions

1. ### math

solve for x x+8=-1 solving with addition and subtraction(type in)
2. ### Math

Using the definition of subtraction to determine the subtraction equations that are related to each of the following addition equation: a.8+7=n b.14+x=25 c.r+s=t my answers are this: a. n-7=8 b.x=25-14 c.t-s=r did I do these right?
3. ### MATH 156

What models can be used to help explain the concepts of addition and subtraction of rational numbers?
4. ### Very easy math

my teacher told me that the inverse of addition was subtraction and that the inverse of subtraction was addition... could you prove it to me -x = (-1)x ((-1)x)^-1 I don't see how I'm suppose to get + x by taking the inverse of -x i've …
5. ### math

What strategy did you use in solving this problem?
6. ### math

What models can be used to help explain the concepts of addition and subtraction of rational numbers?
7. ### math

What inverse operation is needed for the first step in solving the equation 12+5x=22?
8. ### math

give reasons of solving rational exponent or radicals in terms of, addition, subtraction, multiplication and division.