Natural numbers - practice problems - page 6 of 87
Natural numbers are all positive integers from 1 to infinity. They are also called counting numbers as they are used to count objects. Zero is not natural number. It is represented by numerals as 1,2,3.... 8, ..., etc.Number of problems found: 1731
- The sum 50
The sum of five consecutive integers is 385. Which one of these five integers is prime? - Simple equation 12 Three times a number divided by 2 plus 5 equals 20. Find the number.
- The difference 4 The difference between four times a number and five is the same as three more than twice a number. Find the number.
- Divisor of two numbers Find the (greatest common) divisor of 18 and 45.
- The remainder
Find the remainder if 17²00 is divided by 18. - Five and four
Five divided by four times the number is 0.25. What is that number? - Twice 2 Twice the difference between a number and 3 is equal to three times the sum of the number and 8. Find the number.
- The sum 32 The sum of three consecutive odd numbers is 33. What are the three consecutive odd numbers?
- I added
I added 10 to 3 times a number; the result is equal to 4 times the number. What is the number?
- The number 88 Write the number 88 as a product of prime factors.
- The difference 6
The difference between a number and 15 is multiplied by -3, and the result is - 30 - The sum 38 The sum of two decimal numbers is four. Their difference is one. What are the numbers?
- Distributive property 2
Show with a drawing that 5 × (6 + 2) = 5 × 6 + 5 × 2. What is the name of this property? - Planetary system
Robert has built a mechanical model solar system with three balls representing planets at the end of rods. Each rod is attached to the center, representing the Sun. The planets are lined up when he turns on the motor. The innermost planet makes a revoluti
- Fruits
(I) bought three apples, two oranges, four pears, and five bananas, which in total cost £3.73. (i) I bought twenty-one apples, no oranges, eight pears, and fifteen bananas, which in total cost £7.57. (i) I bought one apple, eighteen oranges, fourteen pear - Of three
Of three positive numbers the product of the first and second is 42, second and third is 56 and that of third and first is 48. Find the third number. - Human population
The populations of two cities after t years can be modeled by -150t+50,000 and 50t+75,000. What is the difference in the populations of the towns when t=4? - A teacher 3
A teacher gives pens and pencils to elementary students at an equal rate in each classroom. Pencils; Pens 18 ; 72 29 ; A 35 ; 140 B ; 168 Determine the unknown value for the letter B. - Fibonacci numbers
If the first three Fibonacci numbers are given as x1 = 1, x2 = 1, and x3 = 2, then what is the least value of n for which x(n) > 500?
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