Question

How do you know whether to add or subtract when you use the distributive property to multiply

Answer 1

multiplication & division
- &- is +
+ &+ is +

- &+ is -
+ & - is -

Addition and subtraction
Same sign add
Different subtract
Take sign of the largest number

Answer 2

The 10 is correctly distributed so that it is used to multiply the 15 and the 6 separately. The distributive properties of addition and subtraction can be used to rewrite expressions for a variety of purposes. When you are multiplying a number by a sum, you can add and then multiply.