将 769 481 四舍五入到最接近的千位。
它不会直接告诉你答案，而是问你卡在哪一步看看 AI 是怎么陪你一步步弄懂这道题的
完整解法
2
1. Identify the digit in the thousands place and the digit to its right
In , the digit in the thousands place is . The digit to its right (hundreds place) is .
2. Apply rounding rules
Since the digit in the hundreds place is , which is less than , we round down. The thousands digit remains , and all digits to the right become .
答案
(option 1)
AI 分析，可能出错
用 AI 批改，圈出写错的那一步，并自动将你的薄弱点存入错题本，形成你的错因库。