Let's go through the problems from the image you've uploaded and provide solutions.

13. A blouse requires 1 ¼ m of cloth, how many blouses can be made from 21 m of cloth?

• We need to divide 21 by 1 ¼ (which is 1.25). $\frac{21}{1.25} = 16.8 \quad \text{(approximately)}$ So, the answer is C. 16.

14. Edith wants to cut pieces of ribbon 1/3 meter long from a piece of 5/6 meter. How many pieces can be cut?

• We divide 5/6 by 1/3. $\frac{5}{6} \div \frac{1}{3} = \frac{5}{6} \times \frac{3}{1} = \frac{15}{6} = 2.5$ So, only 2 full pieces can be cut. The answer is A. 2.

15. The sum of 6 + 0.413 + 0.173 is $6 + 0.413 + 0.173 = 6.586$ So, the answer is B. 6.586.

16. Subtract 0.9289 and 0.7493. The difference is $0.9289 - 0.7493 = 0.1796$ So, the answer is B. 0.1796.

17. For her father’s birthday, Cielo bought a gift worth ₱206.50. How much of her five hundred peso bill was left? $500 - 206.50 = 293.50$ So, the answer is A. ₱293.50.

18. Of the 41 kg of fruits Jaira had sold, 5.75 kg were mangoes, 21.5 kg were lanzones, and the rest were papayas. How many kg were papayas? $41 - (5.75 + 21.5) = 41 - 27.25 = 13.75$ So, the answer is C. 13.75.

19. Ivy bought a red dress worth ₱1 966.99. If she gave ₱2 000.00 to the cashier, how much is her change? $2000 - 1966.99 = 33.01$ So, the answer is B. ₱33.01.

20. The water bill costs ₱875.50 while the phone bill costs ₱687.25 more. How much will be needed to pay for the bills? $875.50 + 687.25 = 1562.75$ So, the answer is A. ₱1 562.75.

If you'd like to proceed with more questions or need detailed explanations for each solution, let me know!

Here are 5 related questions to expand your understanding:

1. How do you handle mixed fractions in division?
2. What are other methods to check your subtraction for decimals?
3. What is a quick way to estimate large sums of money in word problems?
4. How can you calculate remaining quantities when multiple items are subtracted?
5. How would you apply similar strategies for cutting materials other than ribbons?

Tip: When dividing fractions, remember to multiply by the reciprocal of the divisor!