The Arabic numeral system _____ in India.
is thought to have evolved
is thought to evolve
The Arabic numeral system _____ in India.
is thought to have evolved
is thought to evolve
The term ‘mathematics’ _____ by Pythagorus.
is known to have been invented
has been known to be invented
_____ that the idea of numbers evolved gradually over time.
There’s thought
It is thought
It _____ that mathematics contains the answers to all questions.
could argue
could be argued
_____ early civilisations developed different ways of writing down numbers.
It has known that
We know that
Ancient Egyptians are considered _____ to the development of mathematics.
to contribute
to have contributed
Greek mathematics _____ with Thales of Miletus.
is thought to have begun
has been thought to begin
_____ both these theories are true.
We may believe that
It has believed that
They weren’t _____ in this case.
thought to be involved
thinking to have been involved
You are _____ for your exams in the summer.
expecting to have studied
expected to be studying
We know that algebra was quite advanced at that time.
It ______________________________ algebra was quite advanced at that time.
was known that
is known that
We could argue that the universe is nothing more than a mathematical model.
It ______________________________ the universe is nothing more than a mathematical model.
could be argued that
could argued that
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