Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion ...

Multiply by 8 using the grouping of objects, arrays, and facts you already know. Explore the Multiply by 8 facts using the grouping of objects and arrays. Compete against characters to see who finds ...

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 ...