amya92
02.02.2020 •
Mathematics
Which is a completw sentence?
a. rather then race home by noon.
b. before we left for sweden.
c. but shortly after the concert.
d. climb up that tree.
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Ответ:
A number sentence without unknowns is equivalent to a logical proposition expressed using the notation of arithmetic.
[edit] Examples
A valid number sentence that is true: 3 + 7 = 10.
A valid number sentence that is false: 7 + 9 = 17.
A valid number sentence using a 'less than' symbol: 3 + 6 < 10.
An example from a lesson plan:
Some students will use a direct computational approach. They will carry out the addition 26 + 39 = 65, put 65 = 23 + □, and then find that □ = 42.[6] (wikipedia)
I hope this is helpful!