Type common operators and mathematical comparisons.

Use the opposite Shift key and preserve spaces exactly as shown.

练习输入: +, -, *, /, =, <, >, !

目标: 98.00% 准确率 和 35.00 WPM.

Mathematical Symbols Guided Practice: 8 + 4 = 12; 15 - 6 = 9; 7 * 3 = 21; 20 / 5 = 4; 18 + 27 = 45; 64 / 8 = 8; 11 * 9 = 99.

Mathematical Symbols Review: x >= 10; y <= 25; total = price * quantity; delta != 0; width > 320; height < 900; balance = income - cost.