Which mathematical operations are included in the 6th-grade curriculum?

The inclusion of addition, subtraction, multiplication, and division in the 6th-grade curriculum is fundamental because these operations form the basis of arithmetic and are essential for more advanced mathematical concepts. By this stage, students are expected to not only perform these basic operations but also apply them to solve problems, understand fractions and decimals, and explore concepts like ratios and rates.

Understanding all four operations allows students to develop a comprehensive skill set. For example, subtraction is important for determining differences, while multiplication is used to find totals in repeated addition scenarios. In 6th grade, students are often introduced to more complex applications of these operations, which set the groundwork for algebra and other higher-level mathematics.

The other options mention fewer operations, which would not adequately cover the necessary skills students should master at this educational stage. Each of the four operations plays a crucial role in problem-solving, ensuring students can engage with a wide range of mathematical challenges.