Cool Math 4 Kids: http://www.coolmath4kids.com/
Mr. Nussbaum: http://mrnussbaum.com/grade-5/
Multiplication practice: http://www.multiplication.com/
Fact Monster: http://www.factmonster.com/
ABCYA: http://www.ABCYA.com/
Funbrain: http://funbrain.com/
Wonderopolis: http://wonderopolis.org/
PBS for Kids: http://pbskids.org
National Geographic for Kids:http://kids.nationalgeographic.com/kids/
Mighty Book: http://www.mightybook.com/
Science for Kids: http://www.sciencekids.co.nz/
Kids.gov: http://kids.usa.gov/science
Mr. Nussbaum: http://mrnussbaum.com/grade-5/
Multiplication practice: http://www.multiplication.com/
Fact Monster: http://www.factmonster.com/
ABCYA: http://www.ABCYA.com/
Funbrain: http://funbrain.com/
Wonderopolis: http://wonderopolis.org/
PBS for Kids: http://pbskids.org
National Geographic for Kids:http://kids.nationalgeographic.com/kids/
Mighty Book: http://www.mightybook.com/
Science for Kids: http://www.sciencekids.co.nz/
Kids.gov: http://kids.usa.gov/science