Positive Number: any number to the right of zero, Negative Number: any number to the left of zero, Opposites: Two numbers that are the same distance from zero, Absolute Value: a number's distance from zero, -(-3): 3, -(3): -3, -4+5: 1, 5-6: -1,

Positive and Negative Numbers

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?