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HOW TO REMEMBER FORMULA AND CALCULATOR?
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INVenting Brain Assistant Tools
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Demonstration on how to use your smartphone as your formula and calculator tool
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VOICE DATA ENTRY
valid only for smartphone with microphone icon.
Touch clear button. Next touch any white button. Next touch microphone icon 
. Next speak numbers only.
For decimal use the word "point" example say, "thirteen point seventy five" . Then touch the Solve button.
Area Conversion
acre
= ft2 , square feet
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acre
= m2 , sq. meter
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acre
= yd2, square yard
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acre
= km2
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acre
= mi2 , square mile
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acre
= hectare
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m2
= hectare
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