Basic functions + reason - practice problems - page 49 of 99
Number of problems found: 1975
- Series
Andrew wrote this series of numbers: 1,3,7,15, ...., n. Which number in the series does not belong? ... - Trains
Daily passes the same track section 8 pairs of trains with average 2400 passengers. How many people, on average, travel on one train? - Triangles
Hanka cut the 20 cm long straws into three pieces. Each piece had a length in cm. Then, with these three pieces, she tried to make a triangle. a) What circuit has each of the triangles? b) How long can the longest side measure? c) How many different trian - Quadrangular 4559
The quadrangular garden should be fenced off with a slatted fence. The sides of the orchard are 65m, 78m, 40m and 32m. The wheels are to be placed 6m apart, and the axes of the rims are 15cm apart. How much is needed for a wheel fence, and how many batten
- Sparrow ball
On the sparrow's ball were males and females. There were 160 sparrows. Males were 24 more than females. How many sparrow females were at a ball? - Smallest 80368
What is the smallest whole number to replace the known x for: 9> x/3> 4. - 2-3-6-15-42- 62474
A series of numbers was created according to a specific key. Uncover it and fill in the last two missing numbers. 2-3-6-15-42-? -? - Five-digit 30481
Find the smallest five-digit number A432B that is divisible by 15. - Determine 8322
Determine which number belongs instead of the question mark 25 -? - 205 - 610 -1825
- Consecutive 4122
The sum of four consecutive natural numbers is 90. Determine these numbers. - Divisible by nine
How many three-digit natural numbers in total are divisible without a remainder by the number 9? - Divisors 6619
Which natural number less than 100 has the largest number of divisors? - Difference 5222
Determine the difference and the first term of AP if a3 + a4 = 48, a7 = 80. - Tablecloth 72254
The table top is 1.2 m long, 55 cm wide, and 35 mm thick. Calculate how many regular meters of a 1 m wide roll are needed for a tablecloth that extends 15 cm beyond the bottom edge of the table on all sides.
- How many
How many numbers are less than 222 with a digit sum is 8? - Sum and ratio
The sum and ratio of two numbers are equal to 10. Which numbers are they? - Hens and pigs
Hens and pigs have 46 feet in total. At least how much can heads have? - Consecutive numbers
The sum of ten consecutive numbers is 105. Determine these numbers (write first and last). - Number
What number do I think? The third is 6, and a half is two more than its quarter.
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