Unit 1 Vocabulary

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Across
  1. 4. To find a number that is close in value to a given number
  2. 7. A close guess made using mathematical thinking
  3. 8. The two numbers added together in a addition program
  4. 9. The value assigned to a number digit based on its position
Down
  1. 1. Straight lines marked at equal spaces to show number lines
  2. 2. sums you get in each step of the strategy
  3. 3. The result of addition
  4. 5. The result of subtraction
  5. 6. To put together or break apart ones, tens, or hundreds
  6. 10. A set of routines steps used to solve problems