# math

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what is the difference between a number sentence and an expression?

• math -

A neumber sentence has an equal sign, and is a sentence as long as it holds true
ex true:3+7=10
False: 13+1=15
an expession does not have an equal sign
ex: 3+4/5*3

• math -

Make a true sentence by inserting parentheses.4x9-2=28

• math -

4 x (9-2) = 28

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