Question

Determine the sum by suitable regrouping: 1053 + 273 + 247 +727​

Answer 1

Answer:

2300

Step-by-step explanation:

1053+273+247+727

Answer 2

Answer:

Required sum is 2200.

Step-by-step explanation:

Given,

$1053 + 273 + 247 + 727$

We are regrouping given all numbers,

$(1053 + 247) + (273 + 727) \\ = 1300 + 900 \\ = 2200$

This is a problem of Addition part of Mathematics.

Some important Mathematics formulas:

${(x + y)}^{2} = {x}^{2} + 2xy + {y}^{2} \\ {(x - y)}^{2} = {x}^{2} - 2xy + {y}^{2} \\ {(x + y)}^{3} = {x}^{3} + 3 {x}^{2} y + 3x {y}^{2} + {y}^{3} \\ {(x - y)}^{3} = {x}^{3} - 3 {x}^{2} y + 3x {y}^{2} - {y}^{3} \\ {x}^{3} + {y}^{3} = {(x + y)}^{3} - 3xy(x + y) \\ {x}^{3} - {y}^{3} = {(x - y)}^{3} + 3xy(x - y) \\ {x}^{2} - {y}^{2} = (x + y)(x - y) \\ {x}^{2} + {y}^{2} = {(x - y)}^{2} + 2xy \\ {x}^{2} - {y}^{2} = {(x + y)}^{2} - 2xy \\ {x}^{3} - {y}^{3} = (x - y)( {x}^{2} + xy + {y}^{2} ) \\ {x}^{3} + {y}^{3} = (x + y)( {x}^{2} - xy + {y}^{2} )$

Addition related two more questions:

https://brainly.in/question/52154710

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