Answer:
The answers to fill in the blanks in this question, would be: Martha wins three games of backgammon in a row, even though she has never played before. If Martha assumes she has "beginners luck", she is making an external unstable attribution about her success; if she decides backgammon is an easy game, she is making an external stable attribution about her success.
Explanation:
Attributions are simply defined as the way that people explain the how and the why of actions and behaviors when confronted by a particular situation. From this, a theory was derived called the Theory of Attributions, which focused on how people explain actions and reactions depending on how themselves, and their environments play a role in how these actions and reactions are expressed. As such, there are four spheres: the internal and external attributions, which means, whether it is the internal part of the person (personality, abilities, innate skills) which play the major role, or if it is external factors that play the major role in expressing actions and reaction. The further two spheres are the stable and unstable attributions. These two explain how people perceive whether it is a stable factor, or an unstable one, that forces an action and reaction. These four spheres can be combined and in the case of Martha they do. The first is external unstable because she believes her winning comes from the luck she has out of pure chance, something flitting and that can disappear at any moment, so it is external and unstable. The second is external because the reason for her being good is not due to her abilities but the game being easy, and it is stable because this will not change.
When estimating a quotient, you can round the divisor AND dividend to a more simple division problem. Choose numbers that are close to each, but can be easily divided through more basic multiplication. Ex. 358 divided by 8, is easier viewed as 360 divided by 9, since 9 is easily divided into 36 evenly.