Natural numbers - practice problems - page 5 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
- Equation 94
If 9 more than twice a number is 3 less than 3 times the same number. What is the number? - Fruits
2/3 of the fruits are cherries, and the rest are grapes. I sold 1/2 of the cherries and 1/4 of the grapes. If I had 280 left, how many fruits had I at first? - Math class
There are a total of 30 students in a math class. The number of boys is 2 more than 3 times the number of girls. How many boys are in this math class? - With remainder
What is the greatest number that divides 13850 and 17030 leaves a remainder 17?
- Exactly divisibled Find the least number that can be divided exactly by all the even numbers between 10 and 20
- Ice cream 4
Ice cream sales for a shop in the last 4 months have been 200, 250, 300, and 350. What are the expected sales in the 5th month? - Unknown number 35 I am a number between 121 and 149. I can be divided by both 3 and 5. What number am I?
- LCM and HCF 3 LCM of two integers is 1237. What is their HCF?
- LCMs What is the difference between the LCM (16, 400) and LCM (15, 65)?
- Cardinals and robins
Lee saw c cardinals and 5 robins in his yard. Write the expression that shows the number of birds Lee saw in all. - Older or younger The age of a man after 15 years is 4 times the age of that man 15 years before. Find his present age.
- HCF - big numbers Find the HCF of 72030 and 88200
- Heads and legs 2
There are a number of unspecified numbers of cows and hens in a den. If there are a total of 30 heads and 80 legs in the den, find the number of cows and hens in the den. - The remainder 3 The remainder is 31 when dividing a number by 45. What would the remainder be if the same number were divided by 15?
- Cows and hens
In a group of cows and hens, the number of legs is 14, more than twice the number of heads. Find the number of cows. - Cupcakes
Keia and Hiro made a total of 27 cupcakes. Keia made 2 times as many cupcakes as Hiro. How many cupcakes did Hiro make? - Solve 25 Solve for a in (a+8)/2-3(a+10)/5=1.
- Twice the unknown
I am twice a number. If -8 is subtracted from me, the answer is 6. What am I? - Factorial divisible by 75 Find the least positive integer n such that n! is divisible by 75.
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