4,74·30,6 -8,64·30,5?
300,1-5,06·(34,3+16,2)?

4,74*30,6-8,64*30,5=-118,4761) 4,74*30,6=145,0442) 8,64*30,5=263,523) 145,044-263,52=-118,476 -ответ.300,1-5,06*(34,3+16,2)=14899,521) 34,3+16,2=50,52) 300,1-5,06=295,043) 295,04*50,5=14899,52 -ответ.

4,74·30,6 - 8,64·30,5 =145,044-263,52 =−118,476300,1-5,06·(34,3+16,2) = 300,1-5,06·50,5 =300,1−255,53 =44,57