Mental Math Guided Master Math Unit 10

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First Grade Roars
Grade Levels
K - 1st
Formats Included
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  1. This bundle contains my second five units of Master Math Curriculum for First Grade. The units included are Unit 6 Comparing Numbers, Unit 7 Addition and Subtraction to 20, Unit 8 Applying Properties, Unit 9 Telling Time, & Unit 10 Mental Math Strategies Everything you would need to teach Math i
    Price $70.00Original Price $84.00Save $14.00
  2. This bundle consists of 15 units that I use for my first grade guided math curriculum. It is built around the belief that students need to be exposed to math in a variety of ways. Master Math can be taught in many ways but I will provide the tools to make it a rotation based learning process. Each
    Price $200.00Original Price $253.00Save $53.00


This unit is the tenth unit of a first grade MASTER math curriculum built around the belief that students need to be exposed to math in a variety of ways. It focuses on mental math strategies. Students will learn how to use doubles to add doubles plus one, count on, find ten more and ten less, add 8 and 9 by making 10, decomposing a 2-digit number to make 10 and add, and solving a subtraction problem by adding. Master Math can be taught in many ways but I will provide the tools to make it a rotation based learning process. Each lesson begins with a whole group mini lesson provided in a SMART notebook version or a pdf file. Then students begin to rotate (much like centers). MASTER stands for Manipulatives, Apply Skills, Small Group, Technology, Enrichment, and Review. There are activities provided for each component listed, lesson plans, assessments, SMART notebook files, and a fun culminating craft. Included you will receive:


  • Count on task cards
  • Adding with 1’s and 10’s cards and dry erase mat
  • Making 10 using 10 frames and manipulatives addition cards
  • Doubles and Doubles Plus 1 Puzzles and Sorts
  • Subtraction using Addition 3 way puzzles
  • 10 more 10 less 3 way puzzles

Apply Skills

  • Doubles & Doubles +1 Cover All
  • Adding 9 Bingo
  • Adding 8 Bingo
  • Add to Subtract Gameboard
  • Doubles Bingo
  • Doubles Plus 1 Bingo
  • Ten More Ten Less Number Grid Game

Small Group

  • 10.1 Doubles and Doubles Plus 1
  • 10.2 Adding with 9 and 8 by making a 10
  • 10.3 Counting On
  • 10.4 Using Addition to Subtract
  • 10.5 Breaking apart numbers to add
  • 10.6 10 More and 10 Less
  • 10.7 Review
  • 10.8 Assessment

Technology 10 activities in Boom Learning and 8 in Google Slides

  • Mental Math 10 More 10 Less
  • Mental Math Changing Subtraction to Addition Number Sentences
  • Mental Math Adding 8
  • Mental Math Adding 9
  • Mental Math Doubles & Doubles Plus 1
  • Mental Math Decomposing to Make 10 and add


  • Doubles & Doubled Plus 1 from 11-20
  • Making ten with 9’s using a 2-digit number
  • Counting on Strategy with numbers beyond 20
  • Using addition to subtract beyond 20
  • Break apart and add beyond 20
  • 100 more and 100 less
  • 1000 more and 1000 less


  • Missing addend or subtrahend
  • Writing the correct sign <, >, =
  • Identifying 3-D shapes in the real world
  • Balance the equation true or false
  • Telling time to the hour and half hour
  • What is the value of the underlined number
  • Adding & Subtracting to 20 using a number line
  • Balance the equation with a missing addend or subtrahend

Mental Math Strategy Craft

Make yourself with your favorite mental math strategy

Recording Sheets

Class progress sheet

Individual progress sheet

Lesson Plans

8 lessons completed for you

5 templates to create your own

SMART Notebook warm up lessons whole group

7 different lessons

7 pdf’s in case you don’t have SMART Notebook

Description, I Can Statements, Standards, Binder Cover and Layout

Rotation Templates in SMART Notebook or PDF version


Some of this resource is in Google Slides format. You will NEED TO HAVE ACCESS to GOOGLE SLIDES to use this resource. It is also helpful to have GOOGLE CLASSROOM but not necessary. It will help you easily send the activities to your students.

Please note: I am not affiliated or associated with Google, nor do they endorse this resource. 

Important: To redeem your Boom Cards, you will create an account for Boom Learning. The account you get with your purchase allows you to play the Boom Cards on interactive whiteboards and with individual students using Fast Play. Fast Play does not save student progress reports.

To use Boom Cards, you must be connected to the Internet. Boom Cards play on modern browsers (Chrome, Safari, Firefox, and Edge). Apps are available for Android, iPads, iPhones, and Kindle Fires. For security and privacy, adults must have a Boom Learning account to use and assign Boom Cards. You will be able to assign the Boom Cards you are buying with "Fast Pins," (play provides instant feedback for self-grading Boom Cards). Fast Play is always a free way for students to engage with Boom Cards decks. For additional assignment options you'll need a premium account. If you are new to Boom Learning, you will be offered a free trial of our premium account. Read here for details:

***To try them out below with this preview link!****

Ten More and Ten Less

Using Addition for Subtraction

Decomposing to Add

Doubles & Doubles Plus 1

Addition with 8

Addition with 9

Similar Units

Number Sense Master Math Unit 1

Addition to 10 Master Math Unit 2

Subtraction to 10 Master Math Unit 3

Geometry Master Math Unit 4

Place Value Master Math Unit 5

First Grade Math Curriculum Master Math Bundle Units 1-5

Comparing Numbers Master Math Unit 6

Addition and Subtraction to 20 Master Math Unit 7

Applying Properties of Addition and Subtraction to 20 Master Math Unit 8

Telling Time Master Math Unit 9

Mental Math Master Math Unit 10

First Grade Master Math Curriculum Master Math Bundle 6-10

Measurement Master Math Unit 11

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Total Pages
Answer Key
Teaching Duration
2 Weeks
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to see state-specific standards (only available in the US).
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).


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