hello.Actually i jave done it in my copy but now i cant understand it .can u please tell me how to solve and give the answer in standard form.please tell me the rules whether its multiplication or division.please help me i need you help.Explain the rules!
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Step-by-step explanation:
firstly multiple 25 by 2
you will get 50
now the given number has decimal (2.5) after one digit from right so place decimal after one digit from right in your answer , you will get 5.0.
now 10 to the power 8 multiplied by 10 to the power negative 2 will look like this:--
100000000
100
two zeros will get cancel leaving you with 10 to the power of 6 .
now
we write it in that way rather than writing the whole number because
5.0 × 10^6 looks much better than 5000000 which looks difficult to even prononce.
same goes with the other problem
hope it helps ☺️
Answer:
a) 25×2×10
2.5×2×10³×10-²
5.0×10 8+(2)
5.0×10 6
b) 4×10-5×6×10 12
4×6×10-5+12
24×10