Math: first term.

Natural numbers

https://www.mceducation.com/sgstudent/mapp4
How to express Numbers.ppt.pps
Presentación Microsoft Power Point 1.4 MB
ways to express a number.ppt.pps
Presentación Microsoft Power Point 949.5 KB
COMPARE WHOLE NUMBERS 2.pptx
Presentación Microsoft Power Point 462.1 KB

Rounding

ROUNDING and ESTIMATING NUMBERS.pdf
Documento Adobe Acrobat 530.0 KB
rounding numbers (2).pdf
Documento Adobe Acrobat 316.3 KB

Factors and common factors

http://www.mathsisfun.com/associative-commutative-distributive.html
http://www.maths-games.org/times-tables-games.html
http://www.showme.com/sh/?h=cplGqbg
http://new.mathmastery.com/math/division/Division-with-Remainders/Division-With-Zero-in-the-Quotient/2
http://new.mathmastery.com/math/division/Division-with-Remainders/Division-With-Zero-in-the-Quotient/3
http://www.youtube.com/watch?v=wBSVDxqCTWw
http://aplusmath.com/Games/HiddenPicture/HiddenPicture.php?gametype=Multiplication,
http://www.mathgametime.com/games/penguin-jump-multiplication-game,
http://www.aplusmath.com/Games/matho/Matho.html,
http://www.mathgametime.com/games/tug-team-tractor-multiplication
http://www.arcademicskillbuilders.com/games/penguin-jump/penguin-jump.html
http://www.coolmath4kids.com/long-division/long-division-lesson-1.html
http://www.mathplayground.com/GrandSlamMath2.html
http://www.kidsnumbers.com/long-division.php