Basic Multiplication Facts
Third Grade Content Standard: Fluently [effortlessly and instantly] multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.

Fourth grade has added 11s and 12s, or 12 new ones that are not considered easy.
11s: 0 through 10 are easy
11x11=121
11x12=132
12s: 0 and 1 are easy
2x12=24
3x12=36
4x12=48
5x12=60
6x12=72
7x12=84
8x12=96
9x12=108
10x12=120
11x12=132 (part of 11s)
12x12=144

It is essential that students know these facts in order to be successful in fourth grade.

http://www.learnyourtables.co.uk/en/index2.htm
http://www.mathfactcafe.com/
http://www.thekidzpage.com/learninggames/mathgames
http://www.sheppardsoftware.com/
http://www.mathplayground.com/balloon_invaders.html
http://cemc2.math.uwaterloo.ca/mathfrog/english/kidz
http://themathgames.com/arithmetic-games/addition