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Please help me to check the following exercise.

There is one mistake in each line. Find and correct them
The word processor and calculator are without a shadow of a doubt here to stay,
--> words
and in many respects our life are much richer for them. But teachers and
--> is
other academics are claiming that we are now starting to feel first significant
--> the first
wave of their effects on a generation of the users. It seems nobody under
--> users
the age of twenty can spell or add up some more. Even several leaders
--> any
at leading universities have commented in the detrimental effect the digital
--> on
revolution has had on most intelligent minds in the country. The problem,
--> the most
evidently, lies with the automatical spellcheck now widely available on
--> automatic
wordprocessing soft ware. Professor John Silver of Sydney university of Australia,
--> software
said: ‘How should we bother to learn to spell correctly or for that matter
--> how to
to learn even the most basic of mathematic sums when the press of a button
--> mathematical
we have a problem answered for us. The implications are enormous. Will the
--> our
adult of the future look to the computer to make decisions for them, tell them who
--> adults
to marry or what the house to buy? Are we heading for a future individual to
--> house
independent human thought?
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All correct except the following. I've put the problem areas in red for you.

The word processor and calculator are without a shadow of a doubt here to stay,
--> words

said: ‘How should we bother to learn to spell correctly or for that matter
--> how to

to learn even the most basic of mathematic sums when the press of a button
--> mathematical
Comments  
Students: We have free audio pronunciation exercises.
So they should be:
  • The processor and calculator are without a shadow of a doubt here to stay,
  • said: 'Should we bother to learn to how to spell correctly or for that matter
  • to learn even the most basic of mathematical sums when at the press of a button
Right?
I've corrected all mistakes in the following paragraph. Please help me to check once more if there are any more mistakes

The
processor and calculator are without a shadow of a doubt here to stay, and in many respects our life is much richer for them. But teachers and other academics are claiming that we are now starting to feel the first significant
wave of their effects on a generation of users. It seems nobody under the age of twenty can spell or add up any more. Even several leaders at leading universities have commented on the detrimental effect the digital revolution has had on the most intelligent minds in the country. The problem, evidently, lies with the automatic spellcheck now widely available on wordprocessing software. Professor John Silver of Sydney university of Australia,
said: ‘Should we bother to learn to spell correctly or for that matter to learn even the most basic of mathematical sums when at the press of a button we have our problem answered for us. The implications are enormous. Will the
adults of the future look to the computer to make decisions for them, tell them who to marry or what house to buy? Are we heading for a future individual to independent human thought?