Maths: Basic Addition 2 & 3 digit numbers

This week for Maths, Mr Ogilvie's groups did an activity on Transum. We did an activity called Basic Addition with 2 and 3 digit numbers.We had to use the Column method to solve these problems. This week for our Maths session we were given 10,000 dollars (fake). We had to choose what we would buy with that money.We pretended that Harvey Norman didn't give change so we had to give in the correct amount of money for what we wanted to buy. We had to use the column method to get the correct answer. We went to the bank of Ogilvie (fake), then exchanged and borrowed.  For example 12 + 58. 

This is what it would look like in the Column Method:

You add 2 and the 8 which equals 10. Then you move the 10 to the left. Then add 10 + 10 + 50 which then gives your answer 70. To know if the answer is correct you do the place value method.