1.NBT.C.4 Worksheets, Workbooks, Lesson Plans, and Games
CCSS.MATH.CONTENT.1.NBT.C.4
:"Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, 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. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten."
These worksheets, games, and lesson plans can help students practice this Common Core State Standards skill.
Worksheets
Adding Two-Digit Numbers on an Open Number Line #3
Worksheet
Adding Two-Digit Numbers on an Open Number Line #3
Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!
1st Grade
Math
Worksheet
Adding Tens on an Open Number Line: Write the Equation #1
Interactive Worksheet
Adding Tens on an Open Number Line: Write the Equation #1
Students use open number lines to help them write addition equations in this first-grade practice worksheet!
Interactive Worksheet
Adding Tens
Worksheet
Adding Tens
Students draw ten and one dollar bills for practice adding multiples of ten to two-digit numbers in this money math worksheet.
1st Grade
Math
Worksheet
Sketch the Solution
Worksheet
Sketch the Solution
Children learn a valuable strategy for conceptualizing and solving word problems in this two-digit addition worksheet.
1st Grade
Math
Worksheet
Pumpkin Race Board
Worksheet
Pumpkin Race Board
Enjoy a Halloween-themed race to 100 as students imagine units, rods, and flats as candies, broomsticks, and pumpkins. Players will use this pumpkin race board to regroup between place values up to the hundreds place in order to win the game!
1st Grade
Math
Worksheet
Five Broomsticks Race Board
Worksheet
Five Broomsticks Race Board
Students imagine units and rods are candies and broomsticks in this place value game. They will use this board to regroup between place values up to the tens place, and the first player to get to five broomsticks, or 50, wins the game!
1st Grade
Math
Worksheet
Lesson Plans
M&M Math
Lesson plan
M&M Math
In this engaging, hands-on lesson, students solidify their understanding of place value by adding and regrouping two-digit numbers using M&Ms.
1st Grade
Math
Lesson plan
Quarters and Cents
Lesson plan
Quarters and Cents
Introduce students to the quarter in this hands-on lesson. This is a great way to reinforce double digit addition.
1st Grade
Math
Lesson plan
Mystery Addends: Representing Word Problems
Lesson plan
Mystery Addends: Representing Word Problems
Make a math mystery! In this lesson, help your students understand the relationship between addition and subtraction and how a missing addend word problem is represented with a number sentence.
1st Grade
Math
Lesson plan
Math With Bears
Lesson plan
Math With Bears
This bear-y fun lesson will help your students understand addition and subtraction and reward their efforts with a sweet treat!
1st Grade
Math
Lesson plan
Pumpkin Math and Science
Lesson plan
Pumpkin Math and Science
Looking closely at pumpkins is a good way to incorporate math, specifically estimation and counting. This lesson can be messy and requires some clean up, but kids love it!
1st Grade
Math
Lesson plan
Halloween Place Value Race
Lesson plan
Halloween Place Value Race
Double, double toil and trouble! Use two dice to roll up to 100 with one-digit sumations. In this lesson, students will play a place value game where they race to get to 100 by converting ones to tens.
1st Grade
Math
Lesson plan
Workbooks
No workbooks found for this common core code.
Games
Treasure Diving: Adding Two-Digit and One-Digit Numbers
Game
Treasure Diving: Adding Two-Digit and One-Digit Numbers
Learners hone their two-digit by one-digit addition skills in this underwater race to sunken treasure!
1st Grade
Math
Game
Water Rafting: Adding Two-Digit and One-Digit Numbers
Game
Water Rafting: Adding Two-Digit and One-Digit Numbers
Children hone their multi-digit addition skills in this fun race to the finish line!
1st Grade
Math
Game
Dino Bones: Two-Digit Addition Within 100
Game
Dino Bones: Two-Digit Addition Within 100
Children practice adding two-digit and one-digit numbers to dig up fossils in this math game.
1st Grade
Math
Game
Treasure Diving: Adding Two-Digit Numbers and Multiples of 10
Game
Treasure Diving: Adding Two-Digit Numbers and Multiples of 10
Hone first grade addition strategies with this underwater math adventure!
1st Grade
Math
Game
Water Rafting: Adding Two-Digit Numbers and Multiples of 10
Game
Water Rafting: Adding Two-Digit Numbers and Multiples of 10
Practice essential first grade addition skills in this river-themed math game!
1st Grade
Math
Game
Dino Photoshoot: Two-Digit Addition Within 20
Game
Dino Photoshoot: Two-Digit Addition Within 20
Children use their knowledge of addition to snap pictures of unique dinosaurs in this fun math game!
1st Grade
Math
Game
Exercises
No exercises found for this common core code.
