Question

Teacher writes the following question on the board and asks students to solve it. 711 + 177 + 33 =Rohit solves the question using following steps(711 + 177) + 33 = 888 + 33 = 921Ruhi solves the question using following steps711 + (177 + 33)= 711 + 210 = 921Which property is used by Rohit and Ruhi​

Answer 1

Answer:

[a+b]+c

a+[b+c]

Explanation:

Answer 2

Given :   Teacher writes the following question on the board and asks students to solve it. 711 + 177 + 33  

Rohit solves the question using following steps (711 + 177) + 33 = 888 + 33 = 921

Ruhi solves the question using following steps 711 + (177 + 33)= 711 + 210 = 921

To Find : Which property is used by Rohit and Ruhi.

Solution:

Associative Property of Addition

(a + b) + c  = a  + ( b + c)

Commutative property  a + b = b + a

Distributive property

a  * (b  + c)  = a*b  + a * c

(711 + 177) + 33  = 711 + (177 + 33)

(a + b) + c  = a  + ( b + c)

Hence Associative Property of Addition  is used

So correct answer is  Associative property

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