Divisibility Homework
Name _____________________________
Directions:
To determine if a number is divisible by 2, 3, 4, 5, 6, 9, or 10:
Look at the last digit and decide if the number is divisible by 2, 5, or 10
Look at the number formed by the last 2 digits and decide if div by 4
Find the sum of the digits and decide if the number is div by 3, or 9
Based on what you have found so far, decide if it is divisible by 6
(See today’s notes for the divisibility rules)
1) 1,800
sum = _____
Divisible by
2 3 4 5 6 9 10
2) 645
sum = _____
Divisible by
2 3 4 5 6 9 10
3) 43,020
sum = _____
Divisible by
2 3 4 5 6 9 10
4) 3,516
sum = _____
Divisible by
2 3 4 5 6 9 10
5) 60,700
sum = _____
Divisible by
2 3 4 5 6 9 10
6) 8,736
sum = _____
Divisible by
2 3 4 5 6 9 10
7) 7,035
sum = _____
Divisible by
2 3 4 5 6 9 10
8) 923
sum = _____
Divisible by
2 3 4 5 6 9 10
9) 9,048
sum = _____
Divisible by
2 3 4 5 6 9 10
10) 67,065
sum = _____
Divisible by
2 3 4 5 6 9 10
11) 8,912
sum = _____
Divisible by
2 3 4 5 6 9 10
12) 51,840
sum = _____
Divisible by
2 3 4 5 6 9 10
Over
In each 4-digit number, figure out what the missing digit should be so that the number is
divisible by the given numbers.
Be prepared to explain how you determined your answer.
In some cases more than one answer is possible.
1) 876?
Div by 2 and 5
2) 910?
? = ______
3) 472?
Div by 3 and 4
? = ______
4) 231?
? = ______
5) 67?2
Div by 4 and 9
Div by 3 and 5
Div by 2 and 3
? = ______
6) 81?0
? = ______
Challenge: Make up your own divisibility puzzle!
Div by 3 and 4
? = ______