(400-20)•2=400•2-20•2 (80-1)•5=80•5-1•5 (25-9)•4=25•4-9•4 - вопрос №20580626400202400220280158051525942549420172071 от юра419 21.11.2021 02:01

Question

Математика: (400-20)•2=400•2-20•2 (80-1)•5=80•5-1•5 (25-9)•4=25•4-9•4 (20-1)•7=20•7-1•7

юра419 · Answer

(400-20)•2=400•2-20•2=800-40=760(80-1)•5=80•5-1•5=400-5=395(25-9)•4=25•4-9•4=100-36=64(20-1)•7=20•7-1•7=140-7=133...