Add 2-digit numbers

Eureka Math/EngageNY grade 1 module 4 lesson 24, 25 Worksheets

New York State Common Core Math Grade 1 Module 4, Lesson 24, 25
Worksheets for First Grade

Worksheets, solutions, and videos to help Grade 1 students learn how to add a pair of two-digit numbers when the ones digits have a sum less than or equal to 10.
Common Core Standards: 1.NBT.4
Topic F: Addition of Tens and Ones to a Two-Digit Number
The following diagram shows how to add two 2-digit numbers using number bonds. Scroll down the page for more examples and solutions on adding two 2-digit numbers using number bonds.

Lesson 24 Concept Development
Learning Goal: I can add two 2-digit numbers.

• Show Step-by-step Solutions

Lesson 24 Homework

1. Solve using number bonds. Write the two number sentences that show that you added the ten first. Draw quick tens and ones if that helps you.
   
2. Solve using number bonds. The first row has been started for you.

• Show Step-by-step Solutions

Lesson 23 Concept Development
Learning Goal: I can add two 2-digit numbers.

Lesson 25 Homework

1. Solve using number bonds. This time, add the tens first. Write the 2 number sentences to show what you did.
   
2. Solve using number bonds. This time, add the ones first. Write the 2 number sentences to show what you did.

• Show Step-by-step Solutions

Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.