Arithmetic progression - practice for 12 year olds
Number of problems found: 19
- A pattern
If I have a pattern that starts with 1, 4, 9, 16, 25... and so on, which of the following numbers would not appear? - Eduardo
Eduardo wrote a fraction problem by adding 1/4 and then subtracting 2 1/2 in the same pattern, and he got these numbers: 8 5/8, 6 1/8, 6 3/8, 3 7/8 Identify the next two numbers in the pattern - On Tuesday
On Tuesday, the temperature of a chemical compound measured 12°C. If the temperature dropped 4 1/2°C per day, what was the temperature after four days? - Previous 43371
The sum of three natural numbers, five greater than the previous one, is 204. Which are the numbers?
- Find the mean
Find the number between 13 and 29. - Outermost 19403
Twenty young saplings are planted in a row at a distance of 4.5 meters from each other. There is a well by one of the outermost trees. How many meters do we walk when watering trees if we use two watering cans and one is enough to water two trees? - Previous 8148
The sum of three natural numbers is 204. Each of them is five greater than the previous one. Which are the numbers? - Consecutive 7551
Determine the sum of three consecutive natural numbers such that the sum of the first and third numbers is 368. - Tickets
On Monday, the cinema sold 33 tickets. Every next day, twice as many as the previous day. How many tickets were sold on Friday, and how many totals from Monday to Friday?
- Consecutive 6174
Find three consecutive integers whose sum is -693. - Simple sequence
Continue with this series of numbers: 1792,448, 112, _, _ - Real estate
The residential house has three entrances numbered by odd numbers arithmetic progression. The sum of the two numbers on the corner entrances is 50. Calculate the highest of these three numbers. - Sequence 4378
Find out the other three members of the sequence and write their sum: 1,29,2,28,3,27, - Raspberries 3034
Find how many raspberries are in the third and tenth basket, if there are three raspberries in the first and eight raspberries more in each.
- Series
Andrew wrote this series of numbers: 1,3,7,15, ...., n. Which number in the series does not belong? ... - Mailbox
Mailbox is opening at regular intervals 3 times a day. The first time is opened at 8:00 and the last at 19:00. Calculate the hours when the mailbox is opened during the day. - AVG of INT
What is the average of the integers from 9 thought 52 inclusive? - Ravens
The tale of the Seven Ravens was seven brothers, each of whom was born exactly 2.5 years after the previous one when the eldest of the brothers was 2-times older than the youngest, mother all curse. How old were seven ravens brothers when their mother cur - Numbers
Determine the number of all positive integers less than 4183444 if each is divisible by 29, 7, 17. What is its sum?
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