2. Найди значения выражений: 11 ⋅ 7 + 23 23 + 27 ⋅ 2 56 : 14 ⋅ 19 60 : 30 60 : 15 ⋅ 13 72 : 4 + 7 ⋅ 8 86 - 78 : 6 100 : 2

Решение:

• 11 ⋅ 7 + 23
  • 11 ⋅ 7 = 77
  • 77 + 23 = 100
• 23 + 27 ⋅ 2
  • 27 ⋅ 2 = 54
  • 23 + 54 = 77
• 56 : 14 ⋅ 19
  • 56 : 14 = 4
  • 4 ⋅ 19 = 76
• 60 : 30
  • 60 : 30 = 2
• 60 : 15 ⋅ 13
  • 60 : 15 = 4
  • 4 ⋅ 13 = 52
• 72 : 4 + 7 ⋅ 8
  • 72 : 4 = 18
  • 7 ⋅ 8 = 56
  • 18 + 56 = 74
• 86 - 78 : 6
  • 78 : 6 = 13
  • 86 - 13 = 73
• 100 : 2
  • 100 : 2 = 50

Ответ:

• 100
• 77
• 76
• 2
• 52
• 74
• 73
• 50