Natural numbers + multiplication - practice problems - page 7 of 20
Number of problems found: 397
- Parenthesis
Fill in the examples correctly in brackets: A) 7.9+12:3-2 =23 B) 7.9+12:3-2=75 - Lerato
Lerato picks 400 apples from the tree in the orchard. Lerato bottles 4/10 of the apples, use 1/8 of the apple in pie, and sells 3/20 of the apples. A, How many apples does Lerato sell? B, How many does she bottle? C, How many apples does she use in the pi - Foot in bus
It was 102 people on the bus. Twenty-eight girls had two dogs. Eleven girls had one dog. Five dogs (even with their owners) seceded at the next stop. They got two boys together with three dogs. The bus drove one driver. How many feet were on the bus? - Achievement 66164
The test consisted of 50 questions, each with one possible correct answer. The test result is given by the sum of the correct answers, a maximum of 100 points. The criterion for admission was the achievement of 50 points. The study applicant answered 36 q
- Pension or fraud
Imagine your entire working life working honestly and paying taxes and Social Insurance (in Slovakia). You have a gross wage 1240 Euros. You pay social insurance (you and your employer) monthly € 384 during 44 years, and your retirement is 570 Eur du - Diophantus
We know little about this Greek mathematician from Alexandria, except that he lived around the 3rd century A. D. Thanks to an admirer of his, who described his life through an algebraic riddle, we know at least something about his life. Diophantus's youth - Lesson exercising
In the lesson on physical education, pupils are first divided into three groups so that each has the same number. They redistributed, but into six groups. And again, it was the same number of children in each group. Finally, they were divided into nine eq - Odd-numbered 4033
Mr. O. came up with two codes for the vault, which he alternates after a week. Both codes have the product of the digit 120. In an even week, it uses the smallest possible number as the code with this property. In the odd week, the largest. No number 1 in - Following 6367
Uncle Rudolf weaves baskets, which he then sells in the market. On Monday, he knitted 7 baskets; he worked one more every other day than the previous day. How many times more baskets did he knit by the following Monday dinner, compared to the first day, i
- Senior students
There are 7000 students at mountain high school, and 2/7 of these students are seniors. If 2/5 of the seniors favor the school forming a debate team and 3/8 of the remaining students, not seniors, are also forming a debate team, how many students do not f - Unknown number
Samuel wrote the unknown number. Then he had to add 200000 to the number, and the result was multiplied by three. When it was calculated, he was surprised because he would have received the result if he had written the digit to the end of the original num - Digits of age
The product of the digits of Andrew's age six years ago is the same and not equal to 0. Andrew's age is also the youngest possible age with these two conditions. After how many years will the product of the digits of Andrew's age again be the same as toda - Danny
Danny made a mistake in the following problem. Line 1:21 + 35 ÷ 7 + 6(2) Line 2:21 + 5 + 6(2) Line 3:21 + 11(2) Line 4:21 + 22 Line 5:43 On what line was the mistake made? Only input the number of the first incorrect line. - Two-digit number
In a two-digit number, the number of tens is three greater than the number of units. If we multiply the original number by a number written in the same digits, but in reverse order, we get product 3 478. Find the original number.
- Dinosaurs
More than 30 and less than 60 dinosaurs have met at the pond. A quarter of them bathed and 1/7 saws, and the rest gripped. How many were at the pond? How many were there? - There 11
There are 50 pupils in the class. Out of this number, 1/10 speak French only, and 4/5 of the ten speak French and English. If the rest speak English only, find the number of students who speak only English. - A number 5
A number is divisible by 24, 25, and 120 if it is increased by 20. Find the number. - Find unknown number
What is the number between 50 and 55 that is divisible by 2,3,6,9? - Boys and girls 8
In a class of 35 boys and girls with a ratio of 2:5. 5 boys are absent, and five boys are present. How many students are present?
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