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- When two
*positive*integers are added, the resulting integer is $\cdots$

- When two
*negative*integers are added, the resulting integer is $\cdots$

- When a
*positive*integer and a*negative*integer are added, the resulting integer is $\cdots$

- If $a$ is an integer, what is the value of $-a+a$?

- What is the value of $-2+5$?

- What is the value of $-2+(-6)$?

- What is the value of $8-(-5)+(-13)$?

- What is the value of $-22+52-32$?

- What is the value of $12+5-(-8)+(-16)$?

- What is the value of $-20-20+400$?