Xiaoyang's family lives in a one-staircase, one-family high-rise, excluding Xiaoyang's floor, the sum of the other floors is 100, Xiaoyang's family lives in

Analysis: 100 ÷ (6-1) × (3-1) = 20 × 2 = 40 (steps) Answer: Xiaodan will have to walk 40 steps home.

To see if it is a direct write the number of points, if so, you can not write the process, not a direct write the number of points to write the process, the beginner process requires detailed, learn more time can be appropriate to abbreviate some.

Application problems generally appear in elementary school textbooks, usually only involves non-negative numbers of the four operations. In middle school, they are usually algebraic equations to solve application problems, or solve real-world problems by solving right triangles. In high school, there are often a variety of tools available, such as functions, series, inequalities, derivatives, definite integrals, and solving oblique triangles.