Hook
Maths Keys: Tables Trainer

Mini Lesson
When you break numbers into parts, you separate them into tens and ones (or hundreds, thousands, etc.). Then, add the tens together and the ones together before combining them for the final answer.

Steps:

1. Identify the place values of each number (tens, ones, etc.).

2. Add the tens first.

3. Add the ones next.

4. Combine both sums.

Example:

Let's add 56+7856 + 7856+78:

Group the Class: Divide the students into 2-4 teams, depending on the class size. Each team will compete to complete the most problems correctly in a set amount of time.

Setup:

• Have a whiteboard or large paper for each team, or just use a shared board for everyone to see the problems.

• Prepare a set of flashcards with addition and subtraction problems that require Split and Add or Split and Subtract. Include problems that involve numbers up to 3 digits for a challenge.
  
  Independent

Complete a mental strategies game a day.

Reflection

Think about what you learned during today’s activity:

1. Which strategy did you find most helpful: Split and Add or Split and Subtract? Why?

2. How did breaking the numbers into tens and ones make the math easier?

3. What was the most challenging part of the activity?

4. How did working in a team help you