Mixed Practice Worksheet
Name: _________________________
Date: __________________________
1. The sum of a number and 15.
2. The product of 8 and a number, y.
3. 9 less than a number, x.
4. The quotient of a number squared and 3.
5. Twice a number decreased by 4.
6. 10 subtracted from a number, c.
7. The product of 5 and the sum of a number and 2.
8. A painter charges $25 per hour. Write an expression for the cost of 'h' hours.
Evaluate each expression for the given values of the variables.
9. x + 12 when x=5
10. 3y - 4 when y=6
11. a2 + b when a=4 and b=10
12. m3 + 1 when m=15
13. 5(c-2) when c=7
14. 2w + 3z when w=8 and z=2
Simplify each expression using the laws of exponents.
15. x5 · x3
16. a2 · a9
17. y10y4
18. c8c
19. (3m4)(5m2)
20. 12b76b2
Simplify each expression by combining like terms and/or using the distributive property.
21. 5x + 9 + 2x
22. 10y - 4 - 3y + 6
23. 4(a+6)
24. -3(m-2)
25. 5(x+3) + 2x
26. 8 + 2(y-4)
27. Translate "8 less than twice a number," then evaluate the expression when the number is 10.
28. Simplify the expression 4(2x-1) - 3x, then evaluate the result when x=3.