I have been learning to solve subtraction problems by using equal additions from a tidy number
I have learned that when you have an equation like 73 - 28 = you can either add the same number to both sides, or you can subtract the same number from both sides.
I have learned that it is easier to make one of the numbers into a tidy number as it is easier to work out the answer.
My next step is to use this strategy independently
My next step is to use this strategy with larger numbers