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/usr/share/tuxmath/missions/lessons/lesson57 is in tuxmath-data 2.0.3-1.

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# Division of Positives and Negatives

# Math options
play_through_list = 1
allow_speedup = 1
use_feedback = 1
addition_allowed = 0
subtraction_allowed = 0
multiplication_allowed = 0
division_allowed = 1
typing_practice_allowed = 0
allow_negatives = 1
min_divisor = -5
max_divisor = 5
min_quotient = -5
max_quotient = 5
save_summary = 1
question_copies = 1
repeat_wrongs = 1
copies_repeated_wrongs = 2
format_answer_last = 1
format_answer_first = 0
format_answer_middle = 0
format_div_answer_last = 1
format_div_answer_first = 0
format_div_answer_middle = 0
max_answer = 999
max_questions = 5000
randomize = 1
comprehensive = 1
min_formula_nums = 2
max_formula_nums = 2
avg_list_length = 40
vary_list_length = 0

# General game options
starting_comets = 2
extra_comets_per_wave = 2
max_comets = 10
use_powerup_comets = 0
speed = 1.00
max_speed = 10.00
danger_level = 0.35
danger_level_speedup = 1
danger_level_max = 0.90
city_explode_handicap = 0.00
keep_score = 1