UP:MA19.3.10

Vocabulary

  • Place value
  • Round
  • Nearest 10
  • Nearest 100
  • Benchmark number
  • Midpoint

Knowledge

Students know:
  • Values of the digits in the ones, tens, and hundreds places.
  • How to determine what is halfway between two multiples of 10 or 100.
  • Strategies for rounding to the nearest 10 or 100.
  • Use place value vocabulary and logical reasoning to justify solutions when rounding.

Skills

Students are able to:
  • Round whole numbers to the nearest 10 or 100.
  • Identify a possible value for a number which will result in a given number rounded to the nearest 10 or 100.
    Example: What value will result in 270 when rounded to the nearest 10? Identify the possible values.

Understanding

Students understand that:
  • rounding is determining which ten or hundred a number is closer to.
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