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Johaan Rency from The Amaatra Academy, Bangalore
Subject :IMO    Class : Class 5
2.5-4.6+9.0-5.8+4.2-30+59-3.6+3.8-5.1+4.902+10.356-2.9-5.9=

Ans 1:

Seshasayee sudharsan from PSBB Learning Leadership Academy, Bangalore
Class : Class 6
179.258 is the answer

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
2.5-4.6+9-5.8+4.2-30+59-3.6+3.8-5.1+4.902+10.356-2.9-5.9={[(2.5+9)+(4.2+59)]+[(3.8+4.902)+10.356]}-{[(4.6+5.8)+(30+3.6)+(5.1+2.9)+5.9]}=[(11.5+63.2)+(8.702+10.356)]-[(10.4+33.6)+(8+5.9)]=(74.7+19.058)-(44+13.9)=93.758-57.9=35.858.

Ans 3:

Arunava hury from KV1 saltlake , Kolkata
Class : Class 6
The correct answer is 35.858.

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