8 Сравни. 890 ⋅ 10 + 89 ◯ 89 ⋅ 100 530 : 10 + 53 ◯ 53 ⋅ 2 470 ⋅ 10 – 47 ◯ 47 ⋅ 90 6 200 : 10 – 62 ◯ 62 ⋅ 9

Ответ: 890 ⋅ 10 + 89 < 89 ⋅ 100; 530 : 10 + 53 = 53 ⋅ 2; 470 ⋅ 10 – 47 > 47 ⋅ 90; 6 200 : 10 – 62 > 62 ⋅ 9

1. Сравнение 1:
• Вычисляем левую часть: 890 ⋅ 10 + 89 = 8900 + 89 = 8989
• Вычисляем правую часть: 89 ⋅ 100 = 8900
• Сравниваем: 8989 > 8900, значит 890 ⋅ 10 + 89 > 89 ⋅ 100
2. Сравнение 2:
• Вычисляем левую часть: 530 : 10 + 53 = 53 + 53 = 106
• Вычисляем правую часть: 53 ⋅ 2 = 106
• Сравниваем: 106 = 106, значит 530 : 10 + 53 = 53 ⋅ 2
3. Сравнение 3:
• Вычисляем левую часть: 470 ⋅ 10 – 47 = 4700 – 47 = 4653
• Вычисляем правую часть: 47 ⋅ 90 = 4230
• Сравниваем: 4653 > 4230, значит 470 ⋅ 10 – 47 > 47 ⋅ 90
4. Сравнение 4:
• Вычисляем левую часть: 6200 : 10 – 62 = 620 – 62 = 558
• Вычисляем правую часть: 62 ⋅ 9 = 558
• Сравниваем: 558 = 558, значит 6200 : 10 – 62 = 62 ⋅ 9

Ответ: 890 ⋅ 10 + 89 < 89 ⋅ 100; 530 : 10 + 53 = 53 ⋅ 2; 470 ⋅ 10 – 47 > 47 ⋅ 90; 6 200 : 10 – 62 > 62 ⋅ 9

Ответ: 890 ⋅ 10 + 89 < 89 ⋅ 100; 530 : 10 + 53 = 53 ⋅ 2; 470 ⋅ 10 – 47 > 47 ⋅ 90; 6 200 : 10 – 62 > 62 ⋅ 9