We present a series of situations to solve problems using real numbers.
1 - Calculate what fraction of the unit represents: a) Half of the half. half b) Half of the third party. c) The third part of the half. d) Half of the quarter.
2 - Two cars A and B make the same journey of 572 km. L cam car A travels the 5 / 11 of the way when B has crossed the 8 / 13 of it. Which of the two goes first? How many miles he travels each cam?
3 - few years ago Peter was 24, representing as the 2 / 3 of its current age. How old is Peter?
4 - In local elections in a village, 3 / 11 of votes were cast for the party A, 5 / 10 for the match B, 5 / 14 to C and the rest for the match D. The total score has gone from 15,400 s. Calculate: 1 - The number of votes obtained by each party. 2-The number of abstentions aware that the number of voters is 5 / 8 of the electorate.
5 - A father distributed between their children € 1800. The larger one gives 4 / 9 of that amount, the medium 1 / 3 less than the rest yal. How much was each? What fraction of the money was the third?
6 - Write in decimal form 3 / 7 and 9 / 11.
justify previously, if the decimal will be accurate or newspaper.
7 - Write in scientific notation following numbers : a) 125 100 000 000. b) One-tenth of one ten thousandth.
8 - Express in scientific notation: a) The speed of light is three hundred million meters per second. b) The influenza virus has a diameter in mm of five hundred thousandths. c) In the Milky Way is about one hundred and twenty billion stars.
0 comments:
Post a Comment