The suspected militants had "guns of different makes, ammunition, explosive devices in northern and central Sinai" in their possession, according to a slickly produced video statement posted on the armed forces' social media accounts.
As part of the wide-ranging operation to secure Egypt's borders, 158 "criminal elements" were arrested.
The armed forces also neutralised 385 explosive devices that insurgents planted targeting security forces.
The army did not specify when the deaths and arrests took place, saying only that they happened as part of "recent efforts" against jihadists.
Some 650 militants and around 45 soldiers have been killed since the start of the offensive, according to the armed forces.
No independent statistic are available to verify the deaths and the region is largely cut off to journalists.
The Egyptian president has presented himself as a bulwark against terrorism and a rock of political stability amid a region in turmoil.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)