L.I: To calculate the difference of whole numbers using algorithm.
L.I: To subtract using algorithms.
Algorithm is a method used in math to add, subtract, and multiply big numbers. To be able to use algorithm you would need to know your place value and basic number knowledge. Like times tables and simple addition or subtraction. Algorithm subtraction is lining up the numbers into their place value columns, and subtracting them that way. If their lined up into their columns, and a number less than the number their subtracting by, you carry over a one of the number to its left. Then you subtract it. If you are subtracting a small number by a large number, the answer will become a negative. And if you are subtracting a large number by a small number, the answer will be a positive.
I enjoyed this activity because I learnt a new, and easier way to subtract large numbers.