Successor and Precedcessor

 

Rainbow🌈Mental Exercise, daily activity

1. The natural number has no precedcessor 

 A) 4
 B) 3
 C) 1
 D) 2

ANSWER= (C) 1
Explain:- Natural number starts from 1. No number before it

 

2. The difference between successor and the number itself-

 A) 0
 B) 1
 C) -1
 D) 2

ANSWER= (B) 1
Explain:- Successor of a number can be obtained by adding 1 to it.

 

3. The difference between successor and predecessor of a number 

 A) 2
 B) 1
 C) 0
 D) -1

ANSWER= (A)  2
Explain:- Successor of a number is next number and predecessor of a number is previous number. The difference between them is 2 

 

4. Find 27 ÷ ( 9 ÷ 3)=

 A) 1
 B) 3
 C) 9
 D) 6

ANSWER= (C) 9
Explain:- 9÷3=3 , 27÷ 3= 9

 

5. ( 24÷6) - 2=

 A) 6
 B) 4
 C) 2
 D) 0

ANSWER= (C) 2
Explain:- 24 ÷ 6 = 4, 4- 2= 2. 

 

6. AxB = BxA

 A) true
 B) False 
 C) not always true 
 D) not always false

ANSWER= (A) true
Explain:- example 3x4= 4x3=12

 

7.A - B = B - A

 A) true 
 B) false
 C) not true always 
 D) not False always 

ANSWER= (B) false
Explain:- example- 4 - 3 = 1 but 3 - 4 = -1

Here's a video representation: