About this game

Write Hundred Millions Number Names in Digits

Write Hundred Millions Number Names in Digits: a free Grade 5 math game for ages 10-11. Kids turn nine-digit number names into digits. Each round draws 10 questions; instructions are read aloud and every answer is checked.

Aligned with

  • 5.NBT.A.1 Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.
  • 5.NBT.A.3.a Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g., 347.392 = 3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000).
  • 5.NBT.A.4 Use place value understanding to round decimals to any place.

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