Algebraic Techniques - Cryptograms Practice Problems Online

$\begin{array}{ccccc} & & & & 1&3 \\ + & & & & \bigtriangledown &7\\ \hline & & & 1 & 0 &0 \end{array}$

Find the value of $\bigtriangledown$ satisfying the cryptogram above.

$\begin{array}{ccccc} & & & & \spadesuit&2 \\ & & & & \spadesuit&\spadesuit\\ + & & & & 1 &\spadesuit\\ \hline & & & & 7 &8 \end{array}$

Find the value that represents the symbol $\spadesuit$ .

$\begin{array}{ccccc} & & & & 9 &P \\ - & & & & P & Q \\ \hline & & & & Q & 6 \end{array}$

Find the value of 2-digit integer $\overline{PQ}$ .

$\begin{array}{ccccc} & & & & \color{#D61F06} A & B \\ + & & & & \color{#D61F06} C & D \\ \hline & & & & \color{#D61F06} E & F \end{array}$

The cryptogram above shows the sum of two 2-digit integers producing another 2-digit integer. In the leftmost column highlighted in red, which of the following cannot be true?

$\begin{array}{ccccc} & & & & 9 &5 \\ - & & & & 1 &\blacktriangle \\ \hline & & & & \blacktriangle & 8 \end{array}$

Find the value that represents the symbol $\blacktriangle$ .

Intro

Concept Quizzes

Challenge Quizzes

Algebraic Techniques - Cryptograms

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 7 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.