9+9*9-9 how to calculate easily

2011-6-6 21:28 白度一侠 | Grade 5

9 (1+9-1) Agree 0| Comments 2011-6-6 21:30 fhtdwo | Grade 2

9-9=0You directly calculate 9 times 9 on 81 Agree 0| Comments 2011-6-6 21:51 lbqbatter | Grade 5

9 *2*0 Agree 0| Comments 2011-6-6 21:57 zbhmzh | Level 4

The title is ambiguous, please the owner of the parentheses

***4 Articles 2011-6-6 21:28 Baeduyiman | Level 5

9 (1+9-1) Agree 0| Comments 2011-6-6 21:30 fhtdwo | Level 2

9-9=0 You can directly calculate 9 times 9 on 81 Agree 0| Comments 2011-6-6 21:51 lbqbatter | Level 5

9*2*0 Agree 0| Comments 2011-6-6 21:57 zbhmzh | Level 4

The title is ambiguous, please the owner of the parentheses to hit the brackets Agree 0| Comments

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