Page 1 - HA 5.3

SAI INTERNATIONAL SCHOOL

Class: VI

Home Prac ce 5.3

SUBJECT: Mathema cs

CH: 5 PRIME TIME

SUBTOPIC: Divisibility rules
1. Find the remainders obtained when each of the following numbers are divided by
(a) 10, (b) 5, (c) 2.
78, 99, 173, 572, 980, 1111, 2345
2. A number is divisible by 3 if:
a) It ends in 3
b) It is an odd number
c) The sum of its digits is divisible by 3
d) It has 3 in the tens place
3. Which of these numbers is divisible by both 2 and 3?
a) 36
b) 45
c) 21
d) 25
4. Fill in the blanks:
i. A number is divisible by 10 if it ends with ____.
ii. A number is divisible by 4 if the last ____ digits form a number divisible by 4.
iii. 567 is divisible by 9 because the sum of its digits is ____.
5. A number is divisible by 6 if:
a. It is divisible by 2 only
b. It is divisible by 3 only
c. It is divisible by both 2 and 3
d. It ends in 6
6. (i) A number is divisible by 8 if the last ___ digits form a number divisible by 8.

(ii) 990 ends in a 0, so it is divisible by ___ and ___.

(iii) The divisibility rule for 9 is the same as the rule for ___, but the sum must be
divisible by 9 instead.