Solved Examples of Subtraction Tricks

Example 1: Subtract 68 from 100.

Solution:

• 9 – 6=3
• 9 – 8=1

• Subtract each digit of 68 from 9 (for tens and units):
• Combine the results: 31
• Answer is 100 – 68 = 32.

Example 2: Subtract 47 from 83.

Solution:

• Find the complement of 47 with respect to 100: 100 – 47=53
• Add the complement to the minuend: 83+53=13
• Subtract 100 from the result: 136 – 100=36

Example 3: Subtract 487 from 623.

Solution:

• Borrow 1 from the tens place: 3(borrowedbecomes13)−7=6.

• Subtract the rightmost digit:
• Next column: 2 – 8 (borrow 1 from hundreds): 12−8=4
• Leftmost column: 5 – 4=1 (since we borrowed 1, 6 becomes 5).
• Answer is 623 – 487 = 136.

Example 4: Subtract 356 from 729.

Solution:

• Break down 356 into 300, 50, and 6.
• Subtract step-by-step:
  • 729 – 300=429
  • 429 – 50=379
  • 379 – 6=373
• Answer is 729 – 356 = 373.

Example 5: Subtract 496 from 812.

Solution:

• Add 4 to both numbers: 812+4=816 and 496+4=500
• Subtract the new numbers: 816−500=316
• Answer is 812 – 496 = 316.

Example: Subtract 0.48 from 1.

Solution:

• Complement of 0.48 with respect to 1 is 0.52.
• So, 1-0.48=0.521−0.48=0.52.
• Answer is 0.52.

Example: Subtract 2348 from 5237.

Solution:

• Break the numbers into parts: (5000+237) – (2000+348)
• Subtract the large parts first: 5000 – 2000=3000
• Then subtract the smaller parts:
  • Since 237 is smaller, borrow from 3000 making it 2999+1000−348=889
• Add the results: 3000−348=2652 (correction of smaller subtraction).
• Answer is 5237 – 2348 = 2889.

Subtraction tricks can make the process of subtracting numbers faster and easier, especially when dealing with large numbers or specific cases. In this article, we have covered Subtraction definitions, formulas and various tips and tricks to solve subtraction easily.