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What aspect of math does the strategy for Karl aim to improve specifically?
Understanding of word problems
Ability to perform arithmetic with three-digit numbers
Knowledge of mathematical history
Speed in completing math tasks
The correct answer is: Ability to perform arithmetic with three-digit numbers
The strategy for Karl specifically aims to improve his ability to perform arithmetic with three-digit numbers. This focus is crucial as mastering the manipulation of larger numbers is a key component of mathematical development, particularly as students advance in their education. Proficiency in arithmetic operations with three-digit numbers lays a strong foundation for more complex mathematical concepts, including operations with decimals, fractions, and larger integers. While understanding of word problems and speed in completing tasks are important aspects of mathematics, the targeted approach in this case is explicitly designed to enhance Karl's skills in carrying out arithmetic accurately and efficiently. Additionally, knowledge of mathematical history, although beneficial for context and appreciation of the subject, does not directly contribute to Karl's immediate arithmetic capabilities. Thus, focusing on his ability to handle three-digit arithmetic aligns with the goal of building fundamental math skills essential for further learning.