Odpowiedź:
7)
(3/4 + 1 4/5) : 17/60 = (0,75 + 1,8) : 17/60 = 2,55 : 17/60 =
2 55/100 : 17/60 = 2 11/20 * 60/17 = 51/20 * 60/17 = 3 * 3 = 9
9)
2 * [(7 - 6 3/4)² * 0,16 + 0,99] = 2 * (1/4)² * 0,16 + 0,99 =
= 2 * 1/16 * 16/10 + 0,99 = 2 * 1 * 1/10 + 0,99 = 2/10 + 0,99 =
= 0,2 + 0,99 = 1,19
10)
100 - [ 3² + (5,6 - 3 3/5)³ * 10] = 100 - [9 + (5,6 - 3,6)³ * 10] =
= 100 - ( 9 + 2³ * 10) = 100 - ( 9 + 8 * 10) = 100 - 9 - 80 = 11
