https://padlet.com/cfowler/sx0kf2aowk4m en-us 2016-06-14 13:19:25 UTC 2025-09-24 20:13:37 UTC hello@padlet.com cfowler https://padlet.com/cfowler/sx0kf2aowk4m/wish/114608475 On this board, double click anywhere and post your thoughts on the difference between using the difference method of subtraction vs. using the removal method]]> 2016-06-14 13:20:40 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114608475 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114613533 Difference method: When you start from the low number and add up to the larger number

Removal Method: When you start from the higher number and subtract (REMOVE) back to the low number]]> 2016-06-14 13:54:48 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114613533 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114613781 Difference is going up. 
Removal is going down. ]]> 2016-06-14 13:56:42 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114613781 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114613873 The difference method is preferable, but the removal method has purpose and should not be eliminated. Students should be able to use both methods.]]> 2016-06-14 13:57:31 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114613873 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114613882
Removal Method--start from the higher number and subtract off the other number ]]> 2016-06-14 13:57:36 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114613882 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614001 Difference you count up from the lower number and removal you go down from the larger number.]]> 2016-06-14 13:58:27 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614001 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614142 Difference is finding the distance between the two numbers. Removal is taking the lower number from the higher number.]]> 2016-06-14 13:59:19 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614142 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614154 It's easier for me to use the Difference method.

]]> 2016-06-14 13:59:24 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614154 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614390 I like the difference method better. With this being said difference oes up and removal goes down]]> 2016-06-14 14:01:27 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614390 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614417 Difference is using missing addends, removal is take away. Difference method will take you further through higher level mathematics. ]]> 2016-06-14 14:01:39 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614417 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614548 Difference you add . Removal you take away.]]> 2016-06-14 14:02:40 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614548 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614631 Removal: Students have a natural understanding of this method because taking away is something all kids have experienced. I have noticed that after a while this method does not have much meaning to them beyond the simple equation.

Difference: This method requires them to compare numbers. Students begin to analyze and understand number relationships.

Both methods must be taught to our elementary kiddos! ]]> 2016-06-14 14:03:30 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614631 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614689 Difference is basically the distance between the digits
Removal is subtracting the digits

]]> 2016-06-14 14:04:03 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614689 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614811 2016-06-14 14:05:00 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614811 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614960 Removal is going down. Difference is increasing.

]]> 2016-06-14 14:06:04 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114614960 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615094 Distance is the measure of distance between digits, and removal is "taking away". I feel both need to be taught. ]]> 2016-06-14 14:07:11 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615094 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615119 Students should be familiar with both methods. As the math gets more difficult, students will decide for themselves which method they prefer.]]> 2016-06-14 14:07:28 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615119 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615170 2016-06-14 14:07:50 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615170 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615309 Difference: you are adding up to the number
Removal: you are going down]]> 2016-06-14 14:09:23 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615309 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615311 Difference is the distance and removal is direction ]]> 2016-06-14 14:09:24 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615311 https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615323 Difference- Adding up- finding how many numbers lie between the two numbers in the expression. 
Removal- Taking numbers away from the minuend. ]]> 2016-06-14 14:09:30 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/114615323 https://padlet.com/cfowler/sx0kf2aowk4m/wish/2067025712 Students need to be taught a variety of strategies and be able to choose which one is most efficient for the problem they are solving. When students understand both removal and finding the difference, they will be able to choose the one that is most efficient.]]> 2022-02-25 21:28:42 UTC https://padlet.com/cfowler/sx0kf2aowk4m/wish/2067025712