Addition - practice for 12 year olds - page 28 of 29
Number of problems found: 566
- Number train
The numbers 1,2,3,4,5,6,7,8 and 9 traveled by train. The train had three cars, and each was carrying just three numbers. No. 1 rode in the first carriage, and in the last were all odd numbers. The conductor calculated the sum of the numbers in the first, - Daughters
The man conducting the census asks a woman the age of three daughters. Woman says when multiplying the age, get the number 72; if their ages add up, get a number of our house, as you see. The man says: That is not enough to calculate their ages. She says: - Brackets
Place one pair of brackets in the expression 20-16 + 10 - 4 - 2 so that the result will be 0. - Travel by bus
Five girls are traveling by bus. Each holds in each hand two baskets. Each basket contains five cats. Each cat has five kittens. Three girls getting off the bus and another girl without baskets go on board. The bus control driver. How many legs are on the
- Stock
Enterprise sold 7/12 of its products to foreign markets, and 2/5 of the remainder was sold at home. How many % of the products are still in stock? - angles in quadrilateral
What size have angles in quadrilateral (4-gon) if they are in a ratio of 8:9:10:13? - 9-gon
The sum of interior angles of 9-gon is: - Hexadecimal number
What will be the hexadecimal number 303 as a decimal number? - The largest number
Find the largest integer such that: 1. No figures are not repeated, 2. multiplication of every two digits is odd, 3. In addition, all digits are odd.
- Cupcakes
In a bowl were some cupcakes. Janka ate one-third, and Danka ate one-quarter of the cupcakes. a) How many cookies ate together? b) How many cookies remain in a bowl? Write the results as a decimal number and notepad as a fraction. - Playing Cards
Kara has 2 times more cards than Dana. Dana has 4× less than Mary. Together they have 728 cards. How many cards has each of them? - Word problem
348 students were on holiday in Hungary. 133 bought pizza, chips 28 pupils, 25 pupils bought soda, butter 26 pupils, 15 pupils fruits, vegetables 29 students. How much pay for all the food, if every meal costs 5.3 euros? - Eggs
Mother bought from neighbors 39 domestic eggs. Her neighbor got back €4.54 from €10. How many euros get back from 20 banknote if she buys 94 eggs from a neighbor? - Addends
Number 681 divided into the two addends that the first was 9 greater than 60% of the second. Determine these addends.
- Divisibility
Determine the smallest integer which divided 11 gives remainder 4. When divided, 15 gives remainder 10 and when divided by 19 gives remainder 16. - RWY
Calculate the opposite direction of the runway 13. Runways are named by a number between 01 and 36, which is generally one-tenth of the azimuth of the runway's heading in degrees: a runway numbered 09 points east (90°), runway 18 is south (180°), runway 2 - AVG of INT
What is the average of the integers from 9 thought 52 inclusive? - Root
The root of the equation (x-10)² +4 = x² +35x is (equal or greater or less than zero). ... - Opposite numbers
Calculate opposite numbers (additive inverse) to given ones:
Do you have homework that you need help solving? Ask a question, and we will try to solve it.