Do you have student's that need a challenge? Here it is. 30 minutes to complete this 351 question multiplication fact quiz. 0x0 up to 25x25!!!! This quiz will open up another level of mental computation when students work on this.Students use partial products, memorization of basic facts, memorization of squares up to 25, and the difference of squares to get their answers. No written work allowed!!!This is a great activity for those students motivated and gifted in math.