1. Скарбничка моїх досягнень » 22
Виконайте дії. 20 + 30 = 50; 60 – 30 = 30; 52 + 21 = 73; 75 – 31 = 44; 52 – 30 = 22; 48 – 20 = 28; 53 + 34 = 87; 47 + 32 = 79; 27 + 31 = 58; 45 + 30 = 75; 59 – 45 = 14; 95 – 13 = 82.
Виконайте дії. 20 + 30 = 50; 60 – 30 = 30; 52 + 21 = 73; 75 – 31 = 44; 52 – 30 = 22; 48 – 20 = 28; 53 + 34 = 87; 47 + 32 = 79; 27 + 31 = 58; 45 + 30 = 75; 59 – 45 = 14; 95 – 13 = 82.