7. Вычислить. 360+240= 620-140= 350+460= 800-130= 800-60= 840-510= 680+250= 540-380= 706+140=

Вычисляем: 1. (360 + 240 = 600) 2. (620 - 140 = 480) 3. (350 + 460 = 810) 4. (800 - 130 = 670) 5. (800 - 60 = 740) 6. (840 - 510 = 330) 7. (680 + 250 = 930) 8. (540 - 380 = 160) 9. (706 + 140 = 846) Ответ: * (360 + 240 = \textbf{600}) * (620 - 140 = \textbf{480}) * (350 + 460 = \textbf{810}) * (800 - 130 = \textbf{670}) * (800 - 60 = \textbf{740}) * (840 - 510 = \textbf{330}) * (680 + 250 = \textbf{930}) * (540 - 380 = \textbf{160}) * (706 + 140 = \textbf{846})