A triangle with a base of 9 dm and a height of 8 dm is to be cut from a thin
cardboard 10 dm long and 9 dm wide. How much of the area of the cardboard will
be left?
7. What is asked in the problem?
What are the given numbers?
8. What is/are the operation/s used to solve the problem?
9. What is the area of the of the triangle ?
10. What is the area of the left cardboard?​