Addition practice problems
Addition is the fundamental arithmetic operation of combining two or more numbers to find their total or sum. Represented by the plus sign (+), it is commutative (a + b = b + a) and associative ((a + b) + c = a + (b + c)). The identity element for addition is zero, as adding zero to any number leaves it unchanged. Addition extends from counting whole numbers to integers (including negative numbers), fractions, decimals, and complex numbers. The operation forms the foundation for more complex mathematics including algebra, calculus, and linear algebra. Real-world applications include counting, measuring, financial calculations, and combining quantities in virtually every field.Number of problems found: 1573
- Temp below zero
The temperature was 5 degrees below zero at 7 AM. By 7 PM the temperature had risen 5 degrees. What was the temperature at 7 PM? - Flag Shop
Of the flags in Philip's Flag Shop, 1/10 are orange and another 3/10 are blue. What fraction of the flags are either orange or blue? Write your answer as a fraction or as a whole or mixed number. - Hiking trails
There are 12,000 kilometres of hiking trails in a national park. Each trail is rated for difficulty: 3/8 of the trails are rated easy, 1/6 are rated moderate, 1/4 are rated hard, and 5/24 are rated difficult. What fraction of the trails are rated easy or - Stefan
Stefan sells Jin a bicycle for $147 and a helmet for $18. The total cost to Jin is 150% of what Stefan originally spent to buy the bike and helmet. How much did Stefan spend originally? How much profit did he make by selling the bicycle and helmet to Jin? - Reading huge book
Joy is reading a 352-page novel for her summer reading project. On Monday, she reads 3/8 of the novel. On Tuesday she reads 28 pages. On Wednesday, she reads 1/4 of the novel. How many more pages does Joy have left to read? - Nely and chocolate
Three friends share a chocolate bar. Polly ate 2/5 of the chocolate bar, Kim ate 3/7 of the chocolate bar, and Nelly ate the rest. What fraction of the chocolate bar did Nelly eat? - Sauce in the bowl
I cook 8 cups of pasta, then divide it equally among 5 bowls, and pour 1 1/4 cups of sauce into each bowl. How many cups of pasta and sauce are in each bowl in total? - Combined work
Latoya works mowing lawns and babysitting. She earns $8.60 an hour for mowing and $7.60 an hour for babysitting. How much will she earn for 6 hours of mowing and 1 hour of babysitting? - Buy ice cream
Yesterday, Hector walked 2 1/5 miles from the swimming pool to the ice cream stand and 1/2 of a mile from the ice cream stand back home. How many miles did Hector walk in all? - Negative degrees Celsius From 1:00 a.m. to 10:00 a.m., the temperature dropped 7 °C. From 10:00 a.m. until 4:00 p.m., the temperature then rose 15 °C. From 4:00 p.m. to 10:00 p.m., the temperature then dropped 4 °C. At 10:00 p.m., the temperature was −14 °C. What was the temperat
- Three athletes
Three athletes are training for a marathon. Sebastian runs 8.325 miles. Jordan runs 3.1 times the distance Sebastian runs. Rocky runs 6.77 miles less than Jordan. How many total miles did the three athletes run? - Mixed + fractions
Calculate the following with fractions and mixed numbers: 1½ + 4¼ + 5/10 - Sum two mixed Which of the following is the sum of 22 7/9 and 6 8/9?
- Strawberries 16
There are 3/4 kg of strawberries on one plate and 2/3 kg on another plate. How many kilograms of strawberries are there altogether? - A solid
A solid consists of a cone standing on a hemisphere, both with equal radii of 1 cm, and the height of the cone equals its radius. Find the volume of the solid. - Swim kilometers
Amy swam 2/9 kilometres to an island. Then she swam 1/9 kilometres to a boat. How far did she swim in all? Write your answer as a fraction in simplest form. - Tammy
Tammy attends Gray River College. Tuition this year is $6,450. Tammy's parents have saved $2,000 for her tuition. She also has a grant for $1,100 and a music scholarship for $800. Tammy plans to earn the rest at her work-study job. How much money does Tam - Beeps
An electronic device beeps after every 60 seconds. Another device beeps after every 62 seconds. They beeped together at 10 a.m. When is the next time they will beep together? - The average age
The average age of a 5-member committee is the same as it was 3 years ago, because an old member has been replaced by a new one. Find the difference between the ages of the old and new members. - Digits sum
A two-digit number is 3 times the sum of its digits. If 45 is added to the number, its digits are interchanged. Find the sum of the digits of the number.
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