Завдання 1101 - 1200 » 1123-1124

1123. Обчисли: 1) 0 – 7 = –7; 2) 3 – 5 = –2; 3) –4 – 1 = –5; 4) –1 – (–9) = –1 + 9 = 8; 5) 4 – (–2) = 6; 6) –7 –(–7) = 0. 1124. Обчисли різницю: 1) 8 – 12 = –4; 2) –4 – 1 = –5; 3) 12 – (–2) = 12 + 2 = 14; 4) –13 – (–8) = –13 + 8 = –5; 5) 0 – 7 = –7; 6) –3 – (–7) = –3 + 7 = 4; 7) 0 – (–12) = 0 + 12 = 12; 8) –4 – (–4) = –4 + 4 = 0.