Integers - 5th grade (10y) - math problems

1. Divisibility Is the number 761082 exactly divisible by 9? (the result is the integer and/or remainder is zero)
2. Monkey Monkey fell in 38 meters deep well. Every day it climbs 3 meters, at night it dropped back by 2 m. On what day it gets out from the well?
3. Cats Two cats caught two mice in two days. How many mouses will catch 6 cats for 6 days?
4. Trio 56 children lined up in groups of three. How many children did not create a trio?
5. Mistake Nicol mistake when calculate in school. Instead of add number 20 subtract it. What is the difference between the result and the right result?
6. Father and son Father and son are together 80 years. Son is 28 years younger than father. How old is the son?
7. Class 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?
8. Opposite numbers Calculate opposite numbers (additive inverse) to given ones:
9. Rounding 2 Round the following negative number: -143.021
10. Remainders It is given a set of numbers { 170; 244; 299; 333; 351; 391; 423; 644 }. Divide this numbers by number 66 and determine set of remainders. As result write sum of this remainders.
11. Thermometer The thermometer showed -3°C at morning. Then temperature was increased by 1°C again increased by 1°C and then decreased by 1°C and then decreased by 4°C. Which terminal temperature thermometer shows?
12. Integers May be the sum of two integers less than their difference?
13. Numbers Find number on thenumber line that has same distance from this numbers:
14. With bracket Calculate (evaluate) simple mathematical expression with a negative numbers and a bracket: 13+15*5-2*(-6)
15. Value Determine the value of the following exspressions: a) (23-25)·(4-5) b) (97-123):(18+8)
16. Freezer Temperature is -8 degrees Celsius in the freezer. Outside temperature is 2 degrees Celsius. One minute took to change temperature by one degree Celsius if we open door. How many minutes the temperature in the freezer will rise?
17. Clotheslines Mommy needs 6 clothesline 360 cm long. Clotheslines is sold in the length of eight meters. How many of these clotheslines must buy mom if any does not want to be connected? How much mommy pay for the clotheslines when 1 piece costs 24kč?
18. Thermometer thermometer showed -12 degrees Celsius at the morning then the temperature rises by 4 degrees and later again increased by 2 degrees at the evening has fallen by 5 degrees and then fall 3 degrees. What end temperature does the thermometer show?
19. Product of the sum and difference Calculate the product of the sum and difference of numbers -7 and -2.
20. Expression 6 Evaluate expression: -6-2(4-8)-9

Do you have an interesting mathematical word problem that you can't solve it? Enter it, and we can try to solve it.

To this e-mail address, we will reply solution; solved examples are also published here. Please enter e-mail correctly and check whether you don't have a full mailbox.