20. The value of the expression x(x–3) + 2 for x=1 is _______ .
21. The number of faces of a cube is _______ .
22. 3
^2 x 3^–5 x 3^6 = _________ .
23. The value of (3^0 + 4^–1
) x 2^2
= __________.
24. The usual form of 4.75 x 10^–3
is _________.
25. The common factor in the expression 4y–8y^2
is _____ .
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20. The value of the expression x(x–3) + 2 for x=1 is __0_____ .
21. The number of faces of a cube is _6__ .
22. 3
^2 x 3^–5 x 3^6 = ____1491.87____ .
23. The value of (3^0 + 4^–1
) x 2^2
= ___5_______.
24. The usual form of 4.75 x 10^–3
is __0.00475___.
25. The common factor in the expression 4y–8y^2
is __4y___ .
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