simple strategies for elementary math and work problems
kavitha_grade5 - Saturday, September 20, 2008 11:18:44 AM
This is a pretty good book. I will recommend a buy.
This is a pretty good book. I will recommend a buy.
kavitha_grade5 - Saturday, September 20, 2008 11:19:57 AM
when you add many single digit numbers bucket them into 10s.
when you add many single digit numbers bucket them into 10s.
kavitha_grade5 - Saturday, September 20, 2008 11:22:17 AM
divisibility rules
by 3 if you add all digits and they are divisible by 3
by 4 if it is even and the last 2 digits are divisible by 4
by 5 if it ends in 0 or 5
by 6 if divisible by 3 and 2
kavitha_grade5 - Saturday, September 20, 2008 11:23:42 AM
Multiplying two large numbers
break them into factors. Start multiplying the largest factors first. Give an example for the kids.
kavitha_grade5 - Saturday, September 20, 2008 11:28:02 AM
multiplyinb by 5, 15, 20, 25 etc
multiply with a 10 or a multiple of 10 and half or double or triple
kavitha_grade5 - Saturday, September 20, 2008 11:32:59 AM
The story of check digits for addition, multplication, subtraction
The story of check digits for addition, multplication, subtraction