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Addition

Complements, doubles, making 10 and compensation up to the hundreds

The Addition unit belongs to the Arithmetic and mental math section of Math Mental and has 15 lessons: complements, doubles, making 10 and compensation up to the hundreds.

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Sample questions

In the lesson, numbers change every session and the solution appears after you answer.

Lessons in this unit

  1. Sums up to 10 Lesson, 8 questions
  2. Complements of 10 Lesson, 8 questions
  3. Doubles Lesson, 8 questions
  4. Near doubles Lesson, 8 questions
  5. Making 10 Lesson, 8 questions
  6. Going past 10 Lesson, 8 questions
  7. Practice: facts up to 20 Practice, 10 questions
  8. Tens + ones Lesson, 8 questions
  9. Tens + ones with carrying Lesson, 8 questions
  10. Two two-digit numbers Lesson, 8 questions
  11. Two two-digit numbers with carrying Lesson, 10 questions
  12. Review: addition Practice, 10 questions
  13. Compensation: 99 + 47 Lesson, 8 questions
  14. Hundreds with carrying Lesson, 10 questions
  15. Unit test 12 questions

Your first lesson takes five minutes

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