5. 8 + 17 6 + 28 4 + 39 63 – 8 30 – (6 + 6) 40 – (7 + 7) 50 – (8 + 8) 60 – (9 + 9) 62 + 30 – 2 20 + 75 + 5 83 – 60 + 7 72 – 40 + 8

Решим примеры:

• $$8 + 17 = 25$$
• $$6 + 28 = 34$$
• $$4 + 39 = 43$$
• $$63 - 8 = 55$$

• $$30 - (6 + 6) = 30 - 12 = 18$$
• $$40 - (7 + 7) = 40 - 14 = 26$$
• $$50 - (8 + 8) = 50 - 16 = 34$$
• $$60 - (9 + 9) = 60 - 18 = 42$$

• $$62 + 30 - 2 = 92 - 2 = 90$$
• $$20 + 75 + 5 = 95 + 5 = 100$$
• $$83 - 60 + 7 = 23 + 7 = 30$$
• $$72 - 40 + 8 = 32 + 8 = 40$$

Ответ:

• 25
• 34
• 43
• 55
• 18
• 26
• 34
• 42
• 90
• 100
• 30
• 40