I don't know of any easier way.
Believe me, the practice will help you for a long time. You should know the multiplication tables as well as you know your own name.
oh...... k thanks anyway
Brian, glad that you asked.
All you need to do is to look at the question this way:
(The || means stick the numbers together)
Try another example:
With a little practice, you do not have to write them down and do the calculation mentally.
What MathMate did:
10,000 - 500 - 800 + 40
or my way
95 (100 - 8)
9500 - 760
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