Find the value of the following? |
(a) \[297\times 17+297\times 3\] |
(b) \[54279\times 92+8\times 54279\] |
(c) \[81265\times 169-81265\times 69\] |
(d) \[3845\times 5\times 782+769\times 25\times 218\] |
Answer:
(a) \[297\times 17+297\times 3\] \[=297\times (17+3)\] \[=297\times 20\] \[=5940\] (b) \[54279\times 92+8\times 54279\] \[=54279\times \left( 92+8 \right)\] \[=54279\times 100\] \[=5427900\] (c) \[81265\times 169-81265\times 69\] \[=81265\times (169-69)\] \[=81265\times 100\] \[=8126500\] (d) \[3845\times 5\times 782+769\times 25\times 218\] \[=3845\times 5\times 782+(769\times 5)\times 5\times 218\] \[=3845\times 5\times 782+3845\times 5\times 218\] \[=(3845\times 5)\times (782+218)\] \[=19225\times 1000\] \[=19225000\].
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