Solved Examples: Subtracting Across Zeros in Standard Algorithm

📚 Quick Study Guide

• 🔢 When subtracting across zeros, you need to borrow from the digit to the left of the zeros.
• 🔄 Borrowing involves reducing the digit to the left by 1 and then making the zeros into nines until you reach the ones place, which becomes a ten.
• 📝 Standard algorithm involves writing the numbers vertically, aligning place values, and subtracting column by column, starting from the right.
• 💡 If the digit you're subtracting is larger than the digit you're subtracting from, you'll need to borrow.
• 🧮 Remember to double-check your work to ensure accuracy!

Practice Quiz

1. What is the result of 500 - 235?
   1. 265
   2. 365
   3. 275
   4. 375
2. Calculate: 800 - 452
   1. 348
   2. 458
   3. 358
   4. 448
3. Solve: 1000 - 678
   1. 322
   2. 422
   3. 222
   4. 332
4. Determine the difference: 3000 - 1450
   1. 1550
   2. 1650
   3. 2550
   4. 2650
5. What is 400 - 117?
   1. 283
   2. 383
   3. 293
   4. 393
6. Compute: 9000 - 5236
   1. 3764
   2. 4764
   3. 3864
   4. 4864
7. Find the value of: 600 - 349
   1. 251
   2. 351
   3. 261
   4. 361