Richard Leffingwell

• Doubling and multiplying
• Adding And Counting on
• Adding and Counting on
• Adding And Counting on (Basic Math)
• Compartir y dividir
• Compartir Y Dividir / Sharing And Dividing (Las Matematicas Basicas / Basic Math)
• Doubling And Multiplying
• Duplicar Y Multiplica r/ Doubling And Multiplying
• Duplicar y multiplicar
• Duplicar Y Multiplicar / Doubling And Multiplying (Las Matematicas Basicas /Basic Math)
• Restar Y Quitar / Subtracting And Taking Away (Las Matematicas Basicas / Basic Math)
• Sharing And Dividing