Question

Exercise 2.2
Express the following in standard form
0000000067
b) 1254.36.000
4. A calculator can perform a single
calculation in about 0.0000034 seconds
How much time will it take to calculate
4,000 such calculations? Express your
answer in scientific notation
c) 345
d) 0.00028968
2 Express the following in usual form
3) 5.23 10-
b) 2.05 10
c)210
d) 3.45 10
e) 2.49 101
08.99 10
5. Find the number of seconds in an hour, a
day, a week, a month and a year. Express
your answers in scientific notation
3. One angstrom is the ten billionth part
of a metre. Express this information in
scientific notation
6. One hectare is equal to 10,000 sq.m
How much will this be in sq. cm? Express
your answer in scientific notation.
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Answer 1

Answer:

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