21. One barangay has a population of 9 876, another barangay has a
population of 15 376 and the biggest barangay has a population of 21345. What is the total population of the three barangays?

22. Marilyn wants to buy a pair of sandals worth P925. How much money will be left if she has two P500 bills?

23. Mrs. Morales bought 7 cans of sardines at P15 each can. 10 kilograms of 1 point rice at P45 per kilogram and 12 sachets of nestea apple juice at P9 each. If she gave the cashier P 1,000. how much change did she get?