`213933-213933:87xx68`
`=213933-2459xx68`
`=213933-167212`
`=46721`
______________________
`15275:47xx204-204`
`=325×204−204`
`=66300−204`
`=66096`
_____________________
`13623−13623:57−57`
`=13623−239−57`
`=13384−57`
`=13327`
__________________
`93784:76−76×14`
`=1234−1064`
`=170`
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213933-213933:87 x 68
= 213933 - 2459 x 68
= 213933 - 167212
=46721
13623 - 13623 : 57 -57
=13623 - 239 -57
=13384 - 57
=13327
15275 :47x204-204
=325 x 204-204
=66300-204
=66096
93784:76-76x14
= 1234 - 1064
=170
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