number line (EN)

词组

词组 “number line”

1. （在教育中）一种在直线上显示数字的视觉工具，帮助学生学习基本数学运算。
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   In class, we used the number line to practice adding and subtracting single-digit numbers.
2. 数轴
   The number line helps us understand how negative numbers extend infinitely to the left of zero.