Rational numbers - practice problems - page 8 of 20
a rational number is a number that can be expressed as the fraction p/qof two integers, a numerator p and a non-zero positive denominator q. The decimal expansion of a rational number either terminates after a finite number of digits (example: 1/2 = 0.5), or eventually begins to repeat the same finite sequence of digits over and over - example 1/3 = 0.33333....
Number of problems found: 389
- Milk
Mum bought 16 cartons of milk. One carton of milk weighs 0.925 kg. How much weight are all purchases? - Book
Calculate the thickness of the page of the collection of examples from mathematics, where 4.87 cm is thick and has 451 pages. - Comprises 63694
The 10m long bar comprises 4, 8, 3, and 6 equal parts. Express the length of one piece as a decimal number. - Temperature 5268
In the evening, Zuzana measured the air temperature at -2.4 °C. In the morning, she measured the temperature three times lower. What temperature did Zuzana measure in the morning?
- A man 8
A man has 72 sheep. He wants to divide the sheep among his four children in the ratio of 5:3:2:2. How many sheep will each child get? - Sweaters 14
A store buys 14 sweaters for 84$ and sells them for 504$. How much profit does the store make per sweater? - Boys and girls
If the ratio of male & female teachers is 2/5 & it is in the proportion of the male & female students, how many are girls if there are 42 boys? - Brian
Brian divides 80 by 7. Between what two whole numbers is his answer? - Without 2
Without multiplying, tell whether the product 0.644 x 0.25 will be greater than one or less than 1. Explain how you know. Then find the product.
- Homework
In the crate are 18 plums, 27 apricot, and 36 nuts. How many pieces of fruit were left in the crate when Peter took 8 ninth: 1. nuts 2. apricots 3. fruit 4. drupe - Tourists 82400
On the first day, tourists covered 3/14 of the planned route, on the second day 1/3 of the route, and on the third day 8/21 of the route. On which day did they walk the longest part of the route (1,2,3)? - Calculate: 25551
Calculate: a) 17 + (-23) - (-42) = b) - 32 - (+12) + (+13) = c) 6.7 - (+ 2.5) - (- 8.2) = d) - 0.56 - 4.38 + 6.78 = - Three pieces
Mel has three pieces of lace measuring 4m, 0.2687 m, and 13.5 m, respectively. How long is the lace if she puts them end to end? - Rupee purchase
Sana had ₹ 8.51 (Indian rupee). Out of this, she purchased a book for ₹ 4.31 and a pen for ₹ 2.11. How much money is left with her?
- Wood
Wood cube with edge 11 cm weights 0.753 kg. What weight have 10, 100, and 1000 these cubes? - Copper 83011
Brass is an alloy of copper and zinc in a ratio of 3:2. How much copper and zinc do you need to make 1 kilo of brass? - Kate gift
Kate had PHP 368.29. Her mother gave her PHP 253.46, and her sister gave her PHP 57.39. How much money does she have now? - Mailing
Pablo's mailing packages, each small package costs $2.10 to send, and each large package costs him $2.90. How much will it cost him to send one small package and six large packages? - Wood into pieces
Gwen has a piece of wood that is 8.25 feet in length. Gwen needs to cut pieces that are 0.75 feet in length. How many pieces can Gwen cut from the original piece of wood?
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