Calculate: 671 * 223 + (6000 - 87.40)

Solution:

1. Calculate the terms within the parentheses first:
• $$6000 - 87.40 = 5912.60$$
2. Calculate the multiplication:
• $$671 \times 223 = 149633$$
3. Perform the addition:
• $$149633 + 5912.60 = 155545.60$$

$$ 671 \times 223 + (6000 - 87.40) = 149633 + (5912.60) = 155545.60 $$

Answer: 155545.60