Question

using brackets write three pairs of numbers.whose sum is 15. use them to write equalities​

Answer 1

Given : pairs of numbers.

To Find : three pairs of numbers whose sum is 15.

Solution:

There can be so many solution for this :

Here are few :

(2 + 13)  =  ( 4 + 11 )  =   (6 + 9)  

( 5 + 10) = ( 7 + 8)   = ( 1 + 14)

(0 + 15)   =  (12 + 3)  = ( 10 + 5)

and so on

if we need to add three pairs of numbers to get 15 then

( 1 + 3) + (2 + 5 ) + ( 0 + 4)  = 15

( 1 + 4) + ( 2 + 3) + (5 + 0)  = 15

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Answer 2

SOLUTION

TO DETERMINE

• Using brackets, write three pairs of numbers whose sum is 15

• Write equality using these numbers.

EVALUATION

ANSWER TO QUESTION : 1

We have to find pairs of numbers whose sum is 15

• If we add 5 and 10 we get 15 then the pair is ( 5 , 10 )

• If we add 7 and 8 we get 15 then the pair is ( 7 , 8 )

• If we add 9 and 6 we get 15 then the pair is ( 9 , 6 )

So there many pairs of numbers whose sum is 15

Three such pairs of numbers whose sum is 15 are ( 5 , 10 ) , ( 7 , 8 ) , ( 9 , 6 )

ANSWER TO QUESTION : 2

Now equality using these numbers are

$5 + 10 = 7 + 8$

$7 + 8 = 9 + 6$

$5 + 10 = 9 + 6$

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