61. Yo Mama so small she has to slam-dunk her bus fare.

62. Yo Mama so old she rode dinosaurs¹ to school.

63. Yo Mama so old her memory is in black and white.

64. Why didn't the quarter roll down the hill with the nickel?

Because it had more cents.

65. Why is the obtuse² triangle always so frustrated³?

Because it’s never right.

66. Why is six afraid of seven?

Because seven eight nine.

67. Why was the equal sign so humble⁴?

Because he wasn’t greater than or less than anyone else.

68. What do you call guys who love math?

Algebros.

69. How do you stay warm in any room?

Go to the corner—it’s always 90 degrees.

70. Why was the fraction nervous about marrying the decimal?

Because he would have to convert.