MATH TRICK - ADDING LARGE NUMBER

To add large numbers efficiently, use these strategies:

1. Break Down the Numbers:

• Separate by Place Value: Divide the numbers into thousands, hundreds, tens, and units, then add each place value separately.
• Example: To add 4,567 and 3,289:
  • Thousands: $4,000 + 3,000 = 7,000$
  • Hundreds: $500 + 200 = 700$
  • Tens: $60 + 80 = 140$
  • Units: $7 + 9 = 16$
  • Combine Results: $7,000 + 700 + 140 + 16 = 7,856$.

2. Use Rounding:

• Round Numbers to the Nearest Ten or Hundred: Add the rounded numbers, then adjust for the rounding.
• Example: To add 2,487 and 6,319:
  • Round to nearest hundred: $2,500 + 6,300 = 8,800$
  • Adjust for rounding: $8,800 - (13) = 8,787$.

3. Add in Parts:

• Add Numbers in Smaller Groups: Break the numbers into smaller, manageable parts, and add them sequentially.
• Example: To add 1,234, 2,345, and 3,456:
  • First, add $1,234 + 2,345 = 3,579$.
  • Then, add $3,579 + 3,456 = 7,035$.

These strategies help simplify and speed up the process of adding large numbers.