Interactive quiz: Grade 3 customary weight addition & subtraction

📚 Quick Study Guide

• ⚖️ Customary units of weight include ounces (oz), pounds (lb), and tons.
• 🔢 1 pound (lb) = 16 ounces (oz)
• ➕ To add or subtract customary weights, make sure the units are the same. If not, convert them!
• ➖ When subtracting, you might need to borrow from a larger unit (like borrowing a pound to get more ounces).
• 💡 Remember to show your work and double-check your answers!

✍️ Practice Quiz

1. What is the sum of 5 lb 8 oz and 2 lb 4 oz?
   1. 6 lb 10 oz
   2. 7 lb 12 oz
   3. 8 lb 12 oz
   4. 7 lb 4 oz
2. Subtract 3 lb 5 oz from 8 lb 10 oz.
   1. 5 lb 5 oz
   2. 4 lb 5 oz
   3. 11 lb 15 oz
   4. 5 lb 15 oz
3. A bag of apples weighs 3 lb 12 oz. A bag of oranges weighs 2 lb 8 oz. What is the total weight of both bags?
   1. 5 lb 20 oz
   2. 6 lb 4 oz
   3. 5 lb 4 oz
   4. 6 lb 20 oz
4. You have 7 lb of flour and use 2 lb 9 oz for baking. How much flour is left?
   1. 4 lb 3 oz
   2. 5 lb 3 oz
   3. 4 lb 7 oz
   4. 5 lb 7 oz
5. What is 4 lb + 32 oz in pounds?
   1. 5 lb
   2. 6 lb
   3. 8 lb
   4. 12 lb
6. A box contains 2 lb 6 oz of chocolates. Another box contains 1 lb 10 oz of chocolates. What is the total weight of chocolates in both boxes?
   1. 3 lb 16 oz
   2. 4 lb 0 oz
   3. 3 lb 0 oz
   4. 4 lb 16 oz
7. Sarah has 9 lb 5 oz of clay. She uses 3 lb 12 oz to make a sculpture. How much clay does she have left?
   1. 5 lb 9 oz
   2. 6 lb 9 oz
   3. 5 lb 3 oz
   4. 6 lb 3 oz