Завдання 1101 - 1200 » 1153-1154

1153. Знайдіть суму: 1) –44 + (–6) = –50; 2) –27 + (–97) = –124; 3) –12 + (–11) = –33; 4) –78 + (–13) = –91; 5) –5 + (–8,5) = –13,5; 6) –6,89 + (–8) = –14,89; 7) –0,2 + (–0,2) = –0,4; 8) –7,7+ (–8,7) = –16,4; 9) –0,9 + (–0,1) = –1. 1154. Знайдіть суму: 1) –34 + (–43) = –76; 2) –100 + (–50) = –150; 3) –9 + (–4,2) =–13,2; 4) –2,4 + (–2,4) = –4,8; 5) –7,9 + (–0,1) = –8; 6) –53 ,07+ (–46,93) = –100.