A) 1. The problem asks: About how many 25s are there in 7,889? 2. To estimate, divide 7,889 by 25. 3. Round 7,889 to the nearest hundred or thousand for easier calculation. 7,889 is close to 7,900. 4. Calculate $\frac{7900}{25}$. 5. $\frac{7900}{25} = 316$. 6. Among the options (30, 35, 40, 300), 300 is closest to 316. Answer: D. 300 B) 1. The problem asks: Gabby bought 6 pairs of socks for Php 410. About how much was each pair? 2. Divide 410 by 6 to get the approximate cost per pair. 3. $\frac{410}{6} \approx 68.33$. 4. Look at the options: 50, 60, 70, 80. 70 is closest to 68.33. Answer: C. Php 70 C) 1. The problem asks: 55,916 kg of rice is given to 53 families. How much did each family receive approximately? 2. Divide 55,916 by 53. 3. Round 55,916 to 56,000 for easier calculation. 4. $\frac{56000}{53} \approx 1056.6$. 5. Check the options: 100, 200, 1000, 3000. 1000 is the best estimate. Answer: C. 1000 D) 1. The problem asks: What is the estimated quotient of 78,878 divided by 43 using rounding? 2. Round 78,878 to 79,000 and 43 to 40 for easy division. 3. Calculate $\frac{79000}{40} = 1975$. 4. Check options: 2000, 1000, 200, 100. 2000 is closest. Answer: A. 2000