add 6.54×107 with 189.5 ×1010 and write in slandered form
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Answer:6.54×10^7+189.5×10^10=6.54×10^7+{(189.5×10^3)×10^7}=6.54×10^7+1895×10^7=(6.54+1895)×10^7=1901.54×10^7.
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