Grade 4 · Numbers & operations

Divisibility rules practice

Divisibility rules is a grade 4 math skill aligned to Common Core standard 4.OA.B.4: find all factor pairs for a whole number in the range 1–100, and recognize whether a number is prime or composite. Below are 8 practice questions with answers and step-by-step explanations, drawn from the 25 divisibility rules problems our math games drill.

CCSS 4.OA.B.425 questions in the bank
Sample questions

Try 8 for free

Question 1easy

What is the digit sum of 1515?

Add the digits: 1+5=61 + 5 = 6.

Question 2easy

Is 8484 divisible by 22?

Last digit even.

Question 3easy

Is 2727 divisible by 33?

Digit sum 99.

Question 4easy

Is 4545 divisible by 55?

Ends in 55.

Question 5easy

Is 8181 divisible by 99?

Digit sum 99.

Question 6easy

What is the digit sum of 1818?

Add the digits: 1+8=91 + 8 = 9.

Question 7easy

What is the digit sum of 2121?

Add the digits: 2+1=32 + 1 = 3.

Question 8easy

What is the digit sum of 2424?

Add the digits: 2+4=62 + 4 = 6.

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Math games for Grade 4

Questions like these are served inside our head-to-head math games.

Balloon Pop Math gameBalloon Pop MathPop balloons. Solve math. Win!Beam Team gameBeam TeamFly your saucer over the night farm and beam up a critter for every right answer — first to 12 wins.Blaster Gate gameBlaster GateBlast through the wall. First to clear wins.Blitz Tanks gameBlitz TanksSolve math to load shells. Out-think the battalion. Last math standing wins.
Tests that cover divisibility rules:
SBACACT Aspirei-ReadySC READYVTCAP
More Grade 4 skills:
Angle measurement basicsFraction equivalence and simplificationFactors and multiplesLine plotsMeasurement conversionsPrime number recognitionMissing side from area or perimeterTime and measurement conversionsAll Grade 4 practice →

Drill it inside a game.

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