- Math
- Addition and subtraction
- Age 8-10
-
level: elementary
- English
คำแนะนำของผู้เขียน
Use the plan to solve problems
Problem Solving Using the four steps plan 1
คำแนะนำของผู้เขียน
Use the plan to solve problems
level: elementary
Use the plan to solve problems
Use the plan to solve problems