8/3/2019 Solving Problems With 2 or More Operations

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ORDER OF OPERATIONS IN SOLVING 2- TO 3- STEP WORD PROBLEMS

I. DRILLPerform the indicated operation.

1. (12 + 3)7 = N2. 4 X (6 + 8) = N3. 25 5 + 9 = N4. (184) X (5+3)5. (6 3) + (10 X 3)

II. REVIEWThere are no numbers given in the following problems. Tell which operation/s would you use to solve each

problem.a) The boy scouts hiked ___ km. Then they hiked ___ more. How far did they hike?b) After gaining ___ kg., Rico weighed ___ kg. What was his former weight?c) How many pupils should be accommodated equally in ___ shuttle buses if there are ___ pupils?d) ____ hectares of land are planted with rice. ___ cavans of rice can be harvested per hectare. How many

cavans in all can be harvested?

e) There are ___ hamburgers in each box. When I counted the hamburgers, there were ___ in all. How manyboxes of hamburgers were there?

III. PRESENTATIONRead and study the problem below:

Problem A

Mr. Gonzales put up a capital coming from the following:

BankPhp 25 000.00 Private Php 100 000.00 Personal MoneyPhp 150 000.00

The cost of the merchandise he bought was Php 365 723.00. How much was left from the capital?

Problem B

Ana bought 2 kg. of ripe papayas at Php 65.00 per kg and a kg of banana at Php 76.00 per kg. How much change did she

receive from a Php 500 bill?

IV. FIXING SKILLSWrite the mathematical sentences then solve.

a) Juan bought a pair of shoes costing Php 925 and a tie costing Php 275. He gave the seller Php2,000. Howmuch change did he receive?

b) There are 834 pupils in San Isidro Elementary School and 675 pupils in Sta. Ana Elementary School. Eighthundred pupils from these two schools are girls. How many are boys?

c) Five friends decided to share the expenses for their picnic. They bought 2 kg of shrimp at Php 425 per kg, afried chicken at Php 225 and fruits for Php 400. How much was each persons share for the picnic?

d) Mr. Cruz received Php 18,550.00 last month. He spent Php 3,000 for food, Php 1500 for electricity, Php300for the water bill, Php 1050 for transportation and Php 726 for miscellaneous expenses. The rest of his money

was divided equally among his 5 sisters. How much did each sister received?

V. APPLICATIONAnalyze and solve the problem below.

A movie earned Php 5 470 551 in 27 theatres in Manila and Php 2 009 449 in 61 movie houses in other parts

of the country. Combining the two amounts, what was the average income per theatre from this movie?

VI. EVALUATIONRead the problem and do what is asked.

a) Girl Scout troop A collected 150 kg of rice on the first week and 110 kg on the second week. Troop Bcollected 98 kg and 126 kg on the first and second weeks, respectively. If the rice they collected will bedistributed equally among 20 families of Mahabang Parang and 24 families of Sitio Pinagpala, how many kg

should each family receive?

1. What is asked? 6. Step 32. Hidden question 1 7. Number sentence3. Hidden question 2 8. Solution4. Step 1 9. Answer with the correct unit5. Step 2

b) Mr. Cruz had Php 4 500. He spent Php 2 500 for food; Php 750 for transportation and Php 275 for otherexpenses and divided the rest among his 5 brothers. How much was the share of each?

1. What is asked? 6. Step 3

2. Hidden question 1 7. Number sentence

3. Hidden question 2 8. Solution

4. Step 1 9. Answer with the correct unit

5. Step 2