有余数的除法(10岁以上)
Division with remainders (age 10+)
用正式的书面长除法,将被除数不超过四位的数除以两位数的除数,并根据实际情况把余数表示为整数、分数,或通过四舍五入来处理。
Divide numbers up to 4 digits by a two-digit divisor using formal written long division, interpreting remainders as whole numbers, fractions, or by rounding as appropriate
学习证据 / Evidence
- 用长除法计算 4,752 ÷ 13,并将余数表示为分数。
- 在现实情境中判断除法余数应该进位还是舍去(例如需要几辆巴士)。
- 解释四位数除以两位数长除法算法的每一个步骤。
- Compute 4,752 ÷ 13 using long division and express the remainder as a fraction
- Decide whether to round up or down a division remainder in a real-life context (e.g. buses needed)
- Explain each step of the long division algorithm for a 4-digit ÷ 2-digit calculation
评估问题 / Assessment
{{name}}能用长除法算出像“1,848 ÷ 24”这样的题目吗——按照除、乘、减、移下一位的步骤,直到得出答案?
Can {{name}} use long division to work out something like '1,848 ÷ 24' — going through the steps of divide, multiply, subtract, and bring down until they reach the answer?