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Teacher Li's book
Now Miss Li and Xiaohua are finishing their homework together. How many minutes will it take to complete:

1÷( 120+ 130),

= 1÷560,

= 1×605,

= 12 (minutes);

96÷( 120× 12- 130× 12),

=96÷ 15,

=96×5,

=480 (pieces).

A: Now both Mr. Li and Mr. Xiaohua will spend 65,438+02 minutes tidying up. This batch of books is 480.