Addition practice problems - page 18 of 79

Number of problems found: 1573

Equation - integers
Solve the equation for the unknown x from the set of natural numbers: 1 + 6 + 11 + 16 + … + x = 970
Rows of chairs
There are 15 chairs in the first row. Each subsequent row has 3 more chairs than the previous row. How many chairs are there in the first 20 rows in total?
Evaluate expression
Evaluate the following expression: −1 2/7 + (−2 1/4) + 1/2 =
Unknown fraction
2/6 + [missing fraction] = 1. What is the missing fraction?
Product Minus Sum
By how much does the product of 328 and 7 exceed their sum?
Four-digit number
George is thinking of a four-digit number and gives us the following clues: a) Its digit sum equals one hundredth of the number obtained by rounding the mystery number to the nearest hundred. b) Its last digit is 1 more than the second-to-last digit. c) T
At the post office
Maria paid three bills at the post office with a hundred-euro banknote: one for €19.95, the second for €50, and the third for €24.65. Each payment carried a fee of €1.40. How many euros did she receive in change?
Digit sum MO Z9-I-4
Determine whether it is possible to add a single-digit number to a number with a digit sum of 2,024 so that the resulting number has a digit sum of 74.
Two cubes 3
Two cubes made of plasticine have single-digit integer edge lengths differing by 1 cm. Can a single larger cube with an integer edge length be made from the same total amount of plasticine?
Meeting of two airplanes
Two airplanes took off simultaneously from two airports 500 km apart, flying toward each other. One flies at a speed of 480 km/h, the other at 720 km/h. How long after takeoff will they meet and what distance will the first airplane fly? a) If there is no
Pizza Left for Dinner
Peter ate a quarter of a pizza for breakfast and a sixth of the remainder for lunch. How much of the pizza did he have left for dinner?
Vegetables - plot
The Happy family has a garden measuring 8 m × 3 m with vegetables planted in it. Peppers occupy 1/12 of the garden, tomatoes occupy 1/8, and strawberries occupy 1/6. They decided to plant sweet potatoes in the remaining area. What fraction of the garden i
Salesman 4
A salesman sold 3/5 of his potatoes on the first day and 2/3 of the remainder on the second day. What fraction of the potatoes did he sell over two days? What fraction did he have left?
Dice Rolls for Sum
Stella rolls a standard six-sided die. How many times does she have to roll the die to be sure that the sum of the results will be at least 4?
Adjacent Angles Calculation
Angles alpha and beta are supplementary. Calculate the size of angle beta if alpha is 57°.
Children in Theater
The theater is watched by 3900 spectators, 3200 of whom are women and 700 men, the rest being children. How many children are watching the theater?
Additional Force on Body
A body with a mass of 5 kg moves in a vertical downward direction with an acceleration of a= 12 m/s². What force acts on it in addition to its weight?
Total Children on Trip
Twenty-nine girls and 16 more boys went on the school trip. How many children went on the trip together?
Siblings
48 children participated in the school trip. Six of them had one sibling on the trip, nine children had two siblings, and four had three siblings. The others had no siblings on the trip. After returning, their parents were waiting to take the children hom
Number line distance
Consecutive natural numbers on the number line are always 1 cm apart. Write the sum of the numbers 9 cm away from 517 on the number line.

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