Subtraction - practice for 12 year olds - page 13 of 37
Number of problems found: 721
- Energy drink
You have 1/5 of an energy drink left. If you drink 1/5 of that, how much of your energy drink did you have left? - Recycling center
Pavani collects 20.3 pounds of metal to take to a recycling center. The recycling center pays her for 18.4 pounds of the metal and refuses the rest of it. How much of Pavani's collection was refused, in pounds? Enter your answer as a decimal, if necessary - Competitor 78234
The first competitor completed the track in 2h12min11s. How much worse was the other's time of 2h19min3s? - Anthea
Anthea is running an experiment to examine vaccine shelf life, and she must precisely monitor the temperature. The starting temperature is −116 degrees Celsius (°C). The temperature rises by 35 degrees, then fall by 12 a degree. What is the final temperat
- 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. - Manuel
Manuel has a rope that is 4 meters long. He cuts away a piece that is 1.06 meters long. How long is the remaining piece of rope? - Ruby barbecued
Ruby barbecued 3 1/2 kg of meat for her visitors. If she served 5/8 of the barbecue, how much barbecue was left? - Temp drop
It is 70°F , and the temperature is expected to drop to 85° in the next month. What is the temperature expected to be? - Sarah 2
Sarah noticed that the temperature went from 20 degrees and dropped to -10 degrees. Sarah says that the change in temperature is -30 degrees, while her friend Kenya says that the temperature change is 10 degrees. Who is correct? Explain your reasoning
- A length
A length of 10/15 meters is cut from an electric wire whose length is 13/15 meters. How long is the remaining piece of wire? - Mr. Giron
Mr. Giron had a rope that was 4 ¼ feet long. His dog bit and cut off 1 ½ foot of the rope. How long is Mr. Giron's rope now? - Fractions and mixed numbers
Evaluate: a=5/6 + 3/4 b= 2 1/2 + 3 2/3 c= 4/8 - 3/8 d= 5/10 - 3/10 e= 11 - 4/5 f= 6/9 - 3/5 g= 11 2/3 - 7 5/6 h= 3 X 2/7 i= 4/5 X 10/12 j= 1/2 X 9 X 6/12 k= 3 2/5 X 2 1/4 l= 2 2/6 X 5 1/7 - Randy 2
Randy went to a bookstore and bought three notebooks at Php 27.50 each and a dictionary at Php 285.25. How much was his change if his money was a 500 peso bill? - A rope
From a rope of length 18 3/4 m, two smaller pieces of lengths 5 m and 7 1/2 m are cut out. Find the length of the remaining piece of rope.
- Mang Ben
Mang Ben took 7 3/10 meters of copper wire for the electrical wiring from a coil of wire 13 7/15 meters long. How much copper wire was left from the coil? - Antonio 2
Antonio harvested 100 1/2 kg of fruits from his farm, selling 30 2/3 kg of durian and 34 5/6 kg of mangosteen. How many kilograms of fruit were not sold? - Peter 10
Peter covered 1/2 of the journey on Monday, 1/4 of the remainder on Tuesday, and the rest on Wednesday. What fraction of the journey was covered on the two days? - Unload truck
Andy has just moved and is beginning to unload his boxes. The truck is currently 11/12 of the way full. He unloads 1/4 more of it. How much more does he have to unload? - Three cakes
There are three cakes an ice cream cake, chocolate, and a sponge cake. We ate 3/4 of the ice cream cake. We cut the chocolate cake into twelve equal pieces, of which We ate nine. The sponge cake was divided into eight equal pieces, with only one remaining
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