70 + 7
30 -5 =x
467 + 1
6000 + 100 + 20 + 5
2000+700+80+4
Subtract 25 from whatever variable you use for "a number". If your number is "x", then the expression becomes "x - 25".
Write the following as an algebraic expression using x as the variable: The sum of a number and -8
The expression is 9*x.
A - B = A + (-B) A - B = A + (-B) A - B = A + (-B) A - B = A + (-B)
It means you should invent a short problem (story) where an addition has to be made.
4x
1/11
A numerical expression is an expression that uses number. For example, if a teacher told you to write four plus six subract two , you would simply write it in number form. 4+6-2.