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Effective activities for training students in mental arithmetic for addition and subtraction include flashcards for quick recall, number line exercises for visual understanding, interactive games that incentivize speed and accuracy, timed quizzes to improve efficiency, and story problems that apply skills to real-world scenarios. Group competitions and peer teaching can also motivate and reinforce learning.
To test a Grade 1 student's practicing mental arithmetic skills, provide simple addition and subtraction problems within 20. Use visual aids like counting beads or fingers initially, if needed. Ask questions orally to emphasize mental calculation. Include variety, like "What's 5 more than 7? " or "If you have 9 apples and eat 2, how many are left?
Practicing mental arithmetic skill in the context of Grade 1 Addition & Subtraction learning involves developing the ability to perform basic math operations in one's head. This skill helps first graders quickly add and subtract numbers without relying on physical counting aids, fostering faster problem-solving skills and a deeper understanding of number relationships.