Calculator practice
Work through 8 cases without a game timer. Choose an answer, check the rule, and move to the next case.
Case 1 of 8 · 0 correct
even entered result; red lamp
Which final digit?
Training only. Cases are generated from the same verified rule as the solver. Practice answers and scores are not sent as solver-request events.
What this drill teaches
Classify the entered result as even or odd, then read the lit lamp. This drill starts after the arithmetic entry stage.
Use feedback, not a speed target
Read the explanation after a mistake and say which input you overlooked. The score counts the first answer for each case. Reloading or restarting clears progress; nothing is saved to an account.
These are original practice exercises built from verified mappings. They do not reproduce a game level, simulate its hazards, or guarantee success in play.
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