Building Blocks
Expression Solver
Solve these expressions to answer a math joke!
Materials
Why can’t your nose grow to be 12 inches long?
The answer to this joke is hidden above. To find the answer, first, find what each of the expressions below equals when x = 3, y=5, and z =6. Then, find the letter that matches the code and write it on that line. Keep going until you can read the answer!
Answer Key
A: 2x + 4
B: 3y – 4
C: 2z + 3
D: x + 21
E: 11 – y
F: 5z
G: 2x + 1
H: x + y + z
I: 3y + 2z
J: 3x – z
K: 5x + y
L: 5y ÷ 5
M: 4x ÷ 6
N: 2x + 3y
O: 4z – 7
P: y + 3z
Q: 6z – 5
R: 4x + 7y
S: 1 + 2z
T: 6x + 4
U: 10y
V: 6z + 5
W: 8y + 6
X: 3(y + z)
Y: 2y – z
Z: 10x + 2
Because then it would be a foot.
A = 10, B = 11, C = 15, D = 24, E = 6, F = 30, G = 7, H = 14, I = 27, J = 3, K = 20, L= 5, M = 2, N = 21, O = 17, P = 23, Q = 31, R = 47, S = 13, T = 22, U = 50, V = 41, W = 46, X = 33, Y = 4, Z = 32
Answers: