Read the table, run the timed quiz, print the worksheet — and when you get all twelve right, print the diploma. The 3s are one page of a bigger story: multiplication as a skill, not a memory feat.
Twelve questions, shuffled, one at a time, against the clock. Answer with the number and press Enter.
Recall up to 9 × 9 gives speed; the soroban method then extends multiplication to numbers nobody memorizes — digit by digit, on beads and then in the head. On the Kani ladder that starts at Level 7 of 9.