7-1~ Arrays and Multiplying 2-Digit number by Multiples of 10
Objective: Students will record multiplication using an expanded algorithm.
Pose the Problem: There are 10 teams in a baseball league. Each team has 25 players on the roster. Use any way you can to find how many players there are in all on the teams. Show your work. Use place-value blocks or drawing to help.
7-2~ Using Mental Math to Multiply 2-Digit Numbers
Objective: Students will discover and use patterns to multiply by multiples of 10
Pose the Problem: The principal of your school needs to order supplies for 20 new classrooms. Each classroom needs the following items: 20 desks, 30 chairs, and 40 pencils. How many of each item does the principal need to order?