Task 1 · easy
Divisibility by 4
Is 7 316 divisible by 4?
Hint and solution →Original practice tasks · Math · Class 5
Divisibility characteristics and prime and complex numbers — tasks with solutions
Start with the easier exercises and work your way up. Every task has a hint and a full step-by-step solution — try it on your own first, then unlock the solution and compare.
Easy
4
Medium
3
Hard
3
Task 2 · easy
Divisibility by 3
Is 4 572 divisible by 3?
Hint and solution →Task 3 · easy
Divisibility by 9
Is 6 174 divisible by 9?
Hint and solution →Task 4 · medium
Recognize Number One
Is 29 prime?
Hint and solution →Task 5 · medium
Recognize the complex number
Is 51 prime or complex?
Hint and solution →Task 6 · easy
Classification of number 1
Is Number 1 the first, complex or none of them?
Hint and solution →Task 7 · hard
First numbers in the range
Write first numbers greater than 20 and less than 40.
Hint and solution →Task 8 · medium
First factor distribution
Spread 84 into the prime factors.
Hint and solution →Task 9 · hard
Missing digit
What numbers can be written instead of □ so that the number 5□4 is divisible by 3?
Hint and solution →Task 10 · hard
Find the number 91divider
Show that 91 is a complex number.
Hint and solution →Karta pracy do druku
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Sprawdzian: Liczby naturalne — klasa 5, część 1Match: topic: Divisibility characteristics and prime and complex numbers · Class 5 · MathView material →Sprawdzian: Liczby naturalne — klasa 5, część 2Match: topic: Divisibility characteristics and prime and complex numbers · Class 5 · MathView material →