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→The toolbars
From left to right:
From left to right:
:(a) The robot button is used to turn on/off computer assistance;
:(a) The level button switches between beginner (Level 1) and expert (Level 2) modes;
:(b) The time (in seconds) before computer assistance starts;
:(b) The robot button is used to turn on/off computer assistance;
:(c) The time (in seconds) before computer assistance starts;
Number card options:
Number card options:
:products, Roman numerals, words, Chinese, hash marks, dots in circles, points on a star, dice, dots in rows
:products, Roman numerals, words, Chinese, hash marks, dots in circles, points on a star, dice, dots in rows