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Lesson Plans and Worksheets for Grade 1
Lesson Plans and Worksheets for all Grades

Videos, examples, and solutions to help Grade 1 students learn how to add a pair of two-digit numbers with varied sums in the ones, and compare results of different recording methods.

Common Core Standards: 1.NBT.4, 1.NBT.6

New York State Common Core Math Grade 1, Module 6, Lessons 18
Worksheets for Grade 1, Module 6, Lesson 18

Topic D: Varied Place Value Strategies for Addition to 100

Lesson 18 Homework

Use any method you prefer to solve the problems below.
1. 74 + 21 = _____
2. 79 + 21 = _____
3. 37 + 45 = _____
4. 27 + 46 = _____
5. 58 + 27 = _____
6. 38 + 48 = _____

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.