Two effective manipulatives that can be used to support fractions and base 10 learning are base 10 blocks and Cuisenaire rods. Base 10 blocks work for all basic operations of addition, subtraction, ...
Practice multiplying by 9 using your fingers and several math games. Explore the Multiply by 9 facts by recognizing there is only one new fact: 9 x 9. Compete against characters to see who finds the ...