Lesson 11: Subtraction Strategies & Numbers WITH 0
Lesson 11 Learning Objectives:
Use mental math strategies to subtract two-digit numbers
Solve problems involving two-digit subtraction
Subtract from 100 and from 1000
Embedded Files
Math Talk:
See Math Talk image below
Polypad: polyhedral dice - play race to Zero from 100 or 1000. Subtract what you roll.
Reflect:
Reflect in your math journal. Draw, create or write to share your thinking. See Lesson 11 guide for more reflection questions, real life anchoring, playful explorations and creative invitations.
Was your mind a straight line or a winding path when solving math using mind strategies?
Did one strategy feel more trustworthy than another?
What do you do when you’re unsure of your subtraction?
Math Talk:
Have a conversation about this image. Be curious. Be creative. Can you see in different ways?
What subtraction do you notice in this image? Is this a 1000 piece puzzle or a 100 piece puzzle? How do you know?
How many pieces are left to complete the puzzle?
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