CBSE · Class 6-10

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Practice Test · Class 8

Playing with Numbers

10 questions randomised from the chapter. Type each final answer and submit to see your score.

00:01

0/10 attempted

01

Test:

205

by

5

.

02

Test:

918

by

9

.

03

Divisibility test:

2748

by

11

.

04

If

2A5

is divisible by

9

, find

A

.

05

Prove

ab + ba

is always divisible by

11

.

06

Is

85305

divisible by

9

?

07

Verify:

37 \times 3 = 111

(a repunit).

08

Sum of any three-digit palindrome divisible by ___?

09

General form of

85

.

10

Test:

624

by

4

.