The ShowMath cast
Each friend shows you one idea by how they act. Meet them all and see how the ideas fit together.
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Wendel The Calendar-Keeper — anchors the year's doomsday and steps by sevens to name the weekday of any date -
Elvi The Eleven-Splitter — pries a number's digits apart and drops their sum into the gap (times-eleven shortcut) -
Fiva The Fives-Finisher — rounds a number ending in 5 to a friendly pair, then tacks on 25 to square it -
Missa The Missing-Digit Diviner — sums the shown digits and reads the hidden one as the shortfall to the next nine (casting out nines) -
Squarl The Squaring-Bouncer — bounces to the nearest round number and back to square any number in her head -
Dashel The Left-to-Right Racer — answers biggest-place-first, out loud, before the calculator finishes -
Magda The Magic-Square Weaver — seeds a four-by-four square from a date so every row, column, and diagonal sums the same -
Nabo The 1089 Conjurer — reverses, subtracts, reverses, adds, and always lands on 1089 -
Halvra The Double-and-Halver — doubles one factor and halves the other until multiplying is easy -
Modo The Clock-Winder — wraps numbers around a clock of any size, the engine under the calendar and missing-digit tricks -
Marlow The Stage Manager — a warm, attentive adult who coaches rehearse-then-perform and reveal-the-secret, and never performs for the kid