Integers - examples
Is the number 109433 divisible by 7?
84 children lined up in groups of three. How many children did not create a trio?
Two cats caught two mice in two days. How many mouses will catch 6 cats for 6 days?
- Diofant 2
Is equation ? solvable on the set of integers Z?
- Chickens and rabbits
In the yard were chickens and rabbits. They had 44 heads and 124 legs. How many chickens and how many rabbits was in the yard?
Monkey fell in 31 m deep well. Every day her scramble 3 meters, at night dropped back by 2 m. On that day it gets hangover from the well?
In the arithmetic sequence is a1=-9, d=4. Which member is equal to the number 147?
The thermometer showed 10°C at morning. Then temperature was increased by 1°C again increased by 2°C and then decreased by 1°C and then decreased by 2°C. Which terminal temperature thermometer shows?
- Opposite numbers
Calculate opposite numbers (additive inverse) to given ones:
May be the sum of two integers less than their difference?
- Rounding 2
Round the following negative number: -151.918
- Father and son
Father and son are together 62 years. Son is 26 years younger than father. How old is the son?
Help little C.F. Gauss sum all the integers from 1 to 340.
The board is 20 yogurts. How many boards of yogurts must be ordered for 794 people in the canteen?
Calculate the integer number which, divided by 45 gives 20 and the rest 2.
When Pythagoras asked how many students attend the school, said: "Half of the students studying mathematics, 1/4 music, seventh silent and there are three girls at school." How many students had Pythagoras at school?
How many times must throw the dice, the probability of throwing at least one three was greater than 90%?
Nicol mistake when calculate in school. Instead of add number 34 subtract it. What is the difference between the result and the right result?
- Report card
Ivor hit 1× grade 5 at the beginning of the school year. How many times must now catch grade 1 to get grade 2 on report card?
- Unknown x
If we add to unknown number 72, then divide by 2 and then subtract 29, we get back an unknown number. What is this unknown number?