Absolute value - practice for 12 year olds
Number of problems found: 29
- Chemical experiment
For an experiment, a chemical solution starts at a temperature of 25°C, falls to −3°C, rises to 15°C and then falls again to −8°C. What is the total change in temperature? Add all the changes together for each rise and fall. - Same remainder
Find the greatest number that will divide 43, 91, and 183 so as to leave the same the remainder in each case. - Calculate: 80496
Calculate: |7 − 15| + |8| − |−13| − 1 = - A parking
A parking garage has five levels below ground. Each level is the same height. Consider ground level to be 0. The depth of the fifth level of the parking garage is -118.5 ft. What is the depth of the first level of the parking garage?
- Drill bit
Bill's 3/8 inch drill bit is missing and is needed for a job. He can get by with drilling a smaller hole than 3/8 inch as long as it is as close to 3/8 inch as possible. Which of the following bits would be the best to use? A. 13/32 inch B. 23/64 inch C. - Difference 73754
The difference between two positive integers is 25. One number is 59. What is the other number? - RS ABS
Find the distance between points R and S on a number line, with coordinates -4 and -7, respectively. - Ferdinand
Ferdinand went from place A to place B and from there to place C. A is 7.2 km from B, and B is 11.7 km from C. Albert went from place A to place D and from there to place C. D is 9.1 km from A and C is 10.8 km from D. Who traveled more and by how much? - Supplies 48553
Marek had 325 CZK. He bought a T-shirt for 129 CZK and wanted to spend 276 CZK on fishing supplies. How many CZK did his parents add to his fishing gear? How many weeks did they cut his pocket money by CZK 10 before he paid off the debt?
- Absolute 37423
Add the absolute values: - Four-digit 10261
Roman likes magic and math. Last time he conjured three- or four-digit numbers like this: • created two new numbers from the given number by dividing it between digits in the place of hundreds and tens (e.g., from the number 581, he would get 5 and 81), • - Temperature difference 2
The temperature in London on new year's day is -2 degree Celsius. The temperature in Prague on the same day is -14 degree Celsius. What is the temperature difference between the two cities? - Cube root
For 13, Sam wrote 2891 instead of the correct cube number. By how much was he wrong? - Numbers 7841
In the middle between the unknown number and the number 166 is the number a) 164, b) 200, c) 500 d) 1356 What are the unknown numbers?
- Temperature 7146
In the evening, Zuzana measured the air temperature at -2.4 °C. In the morning, she measured the temperature three times higher. What temperature did Zuzana measure in the morning? - Difference in temperatures
The temperature in the number line shows minus 15 degrees celsius and 8-degree celsius. What is the difference between the temperatures? - Clocks 5511
What angle do the clocks make at 4:30? - Rectangle 39
Find the perimeter and area of the rectangular with vertices (-1, 4), (0,4), (0, -1), and (-4, 4) - Closest natural number
Find the closest natural number to 4.456 to 44.56 and 445.6.
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