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=10^5 * 99,24=10^5 * 9,924 * 10=9,924*10^6
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b) 2,7*10^15 + 5,3*10^14=10^14 * (2,7*10+5,3)=10^14 * (27+5,3)=
=10^14 * 32,3=10^14 * 3,23 *10=3,23*10^15
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c) 6,25*10^11 + 3,75*10^13=10^11 * (6,25 + 3,75*10^2)=
=10^11 * (6,25 + 3,75*100)=10^11 * (6,25 + 375)=
=10^11 * 381,25=10^11 * 3,8125 * 100=
=10^11 3,8125 * 10^2=3,8125*10^13
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d) 8,5*10^7 + 10^9=10^7 * (8,5 + 10^2)=10^7 * (8,5+100)=
=10^7 * 108,5=10^7 * 1,085 * 100=10^7 * 1,085 * 10^2=
=1,085*10^9