Evaluate expressions and formulas

Answer Key - Grade 6 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Luz reads y pages each night. In 9 nights, Luz reads 9y pages (bedtime can wait). What is 9y when y = 7?

   63
2. 2.

   Milo grabs a pencil for this one. What is 7t when t = 12?

   84
3. 3.

   Ren works a quick one with a plus. What is 8 + 3x when x = 5?

   23
4. 4.

   Ari rings the bell for a subtraction one. What is 50 − 4x when x = 7?

   22
5. 5.

   Bo's tank holds 60 liters. Water is used at 5 liters a day, so after d days it holds 60 − 5d liters. What is 60 − 5d when d = 8?

   20
6. 6.

   Esme squares a number. What is x² when x = 6?

   36
7. 7.

   Jun has a square sunflower bed with side s = 7 m, so its area is A = s². What is A?

   49
8. 8.

   Kira cubes a number. What is x³ when x = 8?

   512
9. 9.

   Luz has a cube-shaped box with edge n = 7 cm, so its volume is V = n³. What is V?

   343
10. 10.

    Noah works a parentheses problem. What is 5(a + 2) when a = 8?

    50