Quick Reference ~ A maths Dictionary for Kids by Jenny Eather Email jeather@iprimus.com.au A Maths Dictionary for Kids by Jenny Eather at www.amathsdictionaryforkids.com


decomposition method

• a method of subtraction.
• may be called trading, borrowing or regrouping.
• in column subtraction, when the bottom digit is greater than the top digit,
a 10 is traded or borrowed from the top digit in the next column left
and that digit is marked down by one.


Home Top Contact
  © Jenny Eather 2014. All rights reserved.