Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

12 Lesson(s)

Adding and Subtracting Multiples of Ten

1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
Waitsfield, VT
Environment: Suburban

Big Idea:

Students will apply the idea of adding or subtracting ten to a number by adding or subtracting multiple groups of ten from a number.

Standards:

Favorites (23)

Resources (22)

Reflections (1)

1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
Waitsfield, VT
Environment: Suburban

Big Idea:

Standards:

Favorites (2)

Resources (14)

Reflections (1)

Speed Date!

New Orleans, LA
Environment: Urban

Big Idea:

Standards:

Favorites (6)

Resources (20)

Reflections (1)

Subtract Tens

Lakeland, FL
Environment: Urban

Big Idea:

Standards:

Favorites (13)

Resources (12)

Reflections (1)

How Many On My Plate? (Addition)

1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
Waitsfield, VT
Environment: Suburban

Big Idea:

Standards:

Favorites (5)

Resources (24)

Reflections (1)

How Many On My Plate? (Subtraction)

1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
Waitsfield, VT
Environment: Suburban

Big Idea:

Standards:

Favorites (5)

Resources (19)

Reflections (1)

End Of Unit Assessment

1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
Waitsfield, VT
Environment: Suburban

Big Idea:

Standards:

Favorites (4)

Resources (20)

Reflections (1)

The Wheels on the Bus

1st Grade Math » Unit: Base 10 Bonanza
1st Grade Math » Unit: Base 10 Bonanza
New Orleans, LA
Environment: Urban

Big Idea:

Standards:

Favorites (5)

Resources (16)

Reflections (1)

Will you be my Valentine?

New Orleans, LA
Environment: Urban

Big Idea:

Standards:

Favorites (4)

Resources (12)

Mid Unit Check In

1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
1st Grade Math » Unit: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
Waitsfield, VT
Environment: Suburban

Big Idea:

This task will offer a challenging activity and will also act as a piece of formative assessment as you look deeper into how well they can add or subtract ten from a number and plan your instruction from here.

Standards:

Favorites (2)

Resources (23)

Reflections (1)

1st Grade Math » Unit: Place Value
Oklahoma City, OK
Environment: Urban

Big Idea:

Standards:

Favorites (1)

Resources (16)

Reflections (1)

Continuing to build mental math skills

1st Grade Math » Unit: Place Value
1st Grade Math » Unit: Place Value
Oklahoma City, OK
Environment: Urban

Big Idea:

Standards:

Favorites (3)

Resources (16)

Reflections (1)
Common Core Math