Numbers - math word problems
Number of problems found: 1462
- Exponential equation
Solve exponential equation (in real numbers): 98x-2=9
Is -10i a positive number?
Lenka is amused that he punched a calculator (seven-segment display) numbers and used only digits 2 to 9. Some numbers have the property that their image in the axial or central symmetry was again give some number. Determine the maximum number of three-di
- Sum of the digits
How many are two-digit natural numbers that have the sum of the digits 9?
How many three-digit natural numbers are divisible by 25?
- The sum
The sum of five consecutive odd numbers is 75. Find out the sum of the second and fourth of them.
- How many
How many numbers are less than 222 with a digit sum is 8?
- Sum of seven
The sum of seven consecutive odd natural numbers is 119. Determine the smallest of them.
- Roman numerals 2-
Subtract up the number written in Roman numerals. Write the results as Roman numbers.
How many three-digit natural numbers is greater than 321 if no digit in number repeated?
Sort fractions ? by its size. Result write as three serial numbers 1,2,3.
- Whole numbers
Pavol wrote down a number that is both rational and a whole number. What is one possible number she could have written down?
- Three-digit integers
How many three-digit natural numbers exist that do not contain zero and are divisible by five?
- Lcm 2
Create the smallest possible number that is divisible by numbers 5,8,9,4,3
- Unknown number
If I reduced the sum of the numbers 70 and the unknown number three times, I would get 100. what is the unknown number?
- Simple sequence
Continue with this series of numbers: 1792,448, 112, _, _
- Count of roots
How many solutions has equation x. y = 7757 with two unknowns on the set of natural numbers?
What is the remainder of the division of natural numbers 293 and 7?
- Divisible by nine
How many three-digit natural numbers in total are divisible without a remainder by the number 9?
- How many 4
How many 4 digit numbers that are divisible by 10 can be formed from the numbers 3, 5, 7, 8, 9, 0 such that no number repeats?