Addition - solving problems.

Solving problems means you need solve the unknown or find the answer to problem. The four steps of Polya model is as follows:

1. Understand the problem.
- what you want to find.
- what information you have.
2. Make Plans  and decision
-what should be done first.
-what formulas to use.
3.Execute the plan.
-calculate
4.Check your answer.
-to make sure your answer is correct.

Solve the following problems.

1.  Dianne has three boxes labelled A, B and C. The boxes contains 15, 12 and 9 chickens respectively . Find the total  number of chicken in box A, B and C.

Answer:



2. Salmah ride a bus. When she entered the bus, there are already five passengers  in it. After that another six passengers enter the bus. What is the total pasengers including her in the bus?

Answer:



Happy trying!