小数位值

用整数乘整数部分为一位数、最多有两位小数的数，例如 3.47 × 6。

Multiply one-digit numbers with up to two decimal places by whole numbers (e.g. 3.47 × 6)

学习证据 / Evidence

• 能用竖式正确计算 4.56 × 7
• 能运用位值推理解释为什么 3.2 × 5 = 16.0
• 能用面积图或展开式表示小数乘法

• Correctly compute 4.56 × 7 using a written method
• Use place-value reasoning to explain why 3.2 × 5 = 16.0
• Model a decimal multiplication using an area diagram or expanded form

评估问题 / Assessment

{{name}}能否算出“3.47 × 6”，同时保证小数点位置正确、每一列都正确进位？

Can {{name}} work out '3.47 × 6' — keeping the decimal point in the right place and carrying correctly through each column?