вычисли значения разностей нужно расписать
74-5,42-8 ,32-17,82-55,45-27,63-46,71-17,63-39.
74–5=60+(14–5)=69 42–8=30+(12–8)=34 32–17=(20–10)+(12–7)=15 82–55=(70–50)+(12–5)=27 45–27=(30–20)+(15–7)=18 63–46=(50–40)+(13–6)=17 71–17=(60–10)+(11–7)=54 63–39=(50–30)+(13–9)=24