Rational numbers - practice problems - page 9 of 20
Number of problems found: 400
- Milk
Mum bought 16 cartons of milk. One carton of milk weighs 0.925 kg. How much weight are all purchases? - Wood
Wood cube with edge 9 cm weights 0.593 kg. What weight have 10, 100, and 1000 these cubes? - Temperature measurement
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? - Brass copper zinc
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? - Parking Spaces Free Fraction
There are 80 parking spaces in the parking lot, of which 1/20 is reserved for the disabled and another 4 spaces for families with children. Express as a fraction what part of the parking lot is free for vehicles without the specified specifications. - Number calculation exercise
Calculate: a) 17 + (-23) - (-42) = b) - 32 - (+12) + (+13) = c) 6.7 - (+ 2.5) - (- 8.2) = d) - 0.56 - 4.38 + 6.78 = - Debt payment settlement
Andrew owes John 2 euros. John owes Matt 3 euros, and Matt owes Andrew 1.5 euros. How many euros will each person have, more or less, after settling all debts? - Christine
Christine sold four durians weighing 1.3 kg, 1.5 kg, 1.4 kg, and 1.6 kg, earning Php 353.80. How much is a kilogram of durian? - Potato Chips
Haydn has a 3-pound bag of Lay's Potato Chips. His four friends want him to split the bag evenly between them (and Haydn). How many pounds of Lay's potato chips will each person get? - The elevator
Hannah took the elevator. She got on the third floor, went down to the basement, went up five stories, went down two floors, up three, up two again, and got out. On which floor did she get off? (Don't forget what the basement is) - A dolphin
A dolphin was swimming 17 meters below the surface of the ocean. It located a squid and dove down four more meters to eat it. What is the location of the dolphin now relative to the surface? - Jana and Eva
Jana and Eva practised decimals. Jana made up a decimal number, and Eva always added three times that number to it. The first number consisted only of ones (i.e., it ended in the hundredths place and had 5 digits). The second number had twice as many deci - 1000 bill
A hat costs Php 75.25, and a discounted T-shirt costs Php 750.55. How much change will you receive if you pay for both items with a Php 1,000 bill? - Book
Calculate the thickness of one page of a mathematics problem book that is 3.98 cm thick and has 495 pages. - 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? - Two hotels
The total cost for a hotel room varies directly with the number of nights you stay. At hotel A, three nights cost a total of P6000. At hotel B, a five-night stay costs a total of P9000. If you will stay for four nights which hotel has a cheaper cost? - The carpenter 2
The carpenter has four pieces of wood that measure 0.4375 m, 0.5624 m, 0.755 m, and 1.001 m. How long is the wood if he puts them end to end? - Three pieces
Hannah has three pieces of stick measuring 0.365 m, 0.152 m, and 0.537 m respectively. How long is the combined stick if she places them end to end? - Sharing chocolate
Frederica and her friends share six chocolate bars. They *each* get 0.75 of a chocolate bar. How many friends did Fredericca share the chocolate bar with? - 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?
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