: Mastering mental and written strategies for calculations within 100, including carrying and borrowing.
In the 2nd-grade mathematics program by S.A. Kozlova, T.E. Demidova, and A.P. Tonkih (part of the "School 2100" educational system ), control works are designed to assess both standard computational skills and the ability to apply mathematical logic in complex situations. Key Topics for Control Works : Mastering mental and written strategies for calculations
: A scenario requiring two actions, such as calculating a total and then finding a remaining balance. : Mastering mental and written strategies for calculations
: Direct calculation of expressions, often including brackets to check the order of operations. : Mastering mental and written strategies for calculations