# Subtraction - 7th grade (12y) - math problems

#### Number of problems found: 264

Please help, I'm lost! I'm calculating the difference between two Fahrenheit degrees 55F - 37F = 18 F Now if I converted the degrees to Celsius before subtracting then we get 12.78C - 2.78 =10C How is that possible when 18F does not equal 10C. Could yo pl
During a contest, Karlo drank 1 3/4 liters of lemonade and Ralph drank 1 ½ liters . Who drank more lemonade and by how much?
• The tailor
The tailor estimated the rest of the fabric in the package at 11 m. By measuring, he found that he could cut the same pieces of this fabric without a residue in 150 cm or 210 cm increments. How many meters of fabric was in the package?
• Antipandemic garlic
Noah bought 0.328 kg of garlic, 0.072 kg of tomatoes, 0.1112 kg of onions, and the remaining kg for ginger to make it 2.387 kg altogether. How many kg of ginger he had bought?
• Antonio
Antonio is thinking of an improper fraction and a mixed fraction which have a sum of 5 5/12. The improper fraction is 8/3. What is the mixed number?
• Alica
Alica went to the market and bought 2 sacks of 50-kilograms of rice that costs P2,200.50 per sack. She wants to sell it in her grocery store at P48.50 per kilo. How much is her profit.
• Paulownia
Seed germination is 80%. Of the sprouted plants, 8% subsequently die. How many plants does a gardener grow from 1,500 seeds?
• Math:
Math: solve each problem. 1. for the school's intramurals, a group of students prepared 23 1/2 liters of lemonade to sell. They had 3 5/8 liters leftover. How many liters of lemonade were sold? 2. My mother bought 3 3/4 kg of beef, 23/5 kg of pork, and 5
• One large
One large pizza is cut into 12 pieces. The pizza has sausage, mushrooms, and cheese on it. Michelle ate 1/6 of the pizza, Natalie ate 1/4 of the pizza, Bridgette ate 1/8 of the pizza, and Brenda ate 1/3 of the pizza. How much of the whole pizza is left, a
• When Joe
When Joe went to work at 6 a. M. , the outside temperature was 3 degrees Celsius. During the day, the Weather worsened and by 3 p. M. the temperature dropped 5 degrees. What was the temperature at 5 p. M. ?
• Spruce
A massive storm broke the top of a fifteen-meter spruce so that it remained hanging along the rest of its trunk. The distance of this hanging top from the ground was 4.6 m. At what height was the spruce trunk broken?
• Two stacks
Two stacks of books together are 7 5/8 inches tall. If one stack is 4 11/16 inches tall, how tall is another stack?
• An experiment 2
The temperature of a substance in an experiment changes by -8.7°F from 10 AM to 1 PM At 5 PM, the temperature is 33.5°F. It is 2/3 of what the temperature was at 1 PM. What was the temperature at 10 AM of the substance?
• Gasoline fuel 2
Mike's budget for his gasoline fuel is 2000.00 a month and he saved the rest. At the end of the month he checked his gasoline slips and found he had used the following amounts of gasoline 9.71 liters,10.23 liters,17.8 liters,6.31 liters and 8.47 liters. I
• Milka
Milka has three and seven sixteeths cm of wire. She needs only two and five eighths cm of wire for her project in the laboratory. How much wire does she need to cut?
• There 17
There is 3/4 of a cake on a plate in Maria's kitchen.  Silvia sees the cake and eats 1/5 of the cake.  Then Franca takes 1/3 of what was there and shares half of her portion with Antonella.  What fraction of the cake is left?
• The Nürburgring
The Nürburgring in Germany is a racetrack that hosts racing events all year. Two of the fastest laps ever driven on the track are 6 minutes 47.30 seconds and 6 minutes 52.01 seconds. How much faster is the 6 minutes 47.30 seconds time than the 6 minutes 5
• Mixed numbers
Five and two-thirds minus 2 and one-half equals what number? A three and one-sixth B three and two-thirds C three and one-half D three and five-sixths
• Change per hour
On Sunday, the temperature was 63 degrees at 2 pm. The temperature was then 72 degrees at 5 pm. What is the rate of change per hour?
• From a 2
From a rope that is 11 m long, two pieces of lengths 13/5 m and 33/10 m are cut off. What is the length of the remaining rope?

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Subtraction Problems. Examples for 7th grade (seventh).