《数学课程标准》(2011年版)对“运算能力”的解释为:“运算能力主要是指能够根据法则和运算律正确地进行运算的能力。培养运算能力有助于学生理解运算的算理,寻求合理简洁的运算途径解决问题。”可见,运算能力并不只是运算速度,甚至于不必过于强调速度,它首先是会算和算正确。会算并不是死记硬背,死搬教条,而是理解算理,并能寻求合理 Mathematical Curriculum Standard (2011 Edition) interprets “computing power ” as: “computing power refers to the ability to operate correctly according to the law and the law of arithmetic training ability to help students understand the operation Arithmetic, to find a reasonable and concise way to solve the problem. ”" It can be seen that the computing power is not just computing speed, or even do not have too much emphasis on speed, it is the first calculation and correct. It is not rote memorization, death to move dogma, but to understand the arithmetic, and can seek reasonable