Are you looking for the answer key to Lesson 1.5? If so, you’ve come to the right place. This article provides a detailed overview of the answer key for Lesson 1.5, and even includes an explanation of the material covered in the lesson.

## Understanding the Material in Lesson 1.5 Lesson 1.5 covers a variety of topics, including the mathematical concepts of addition and subtraction, counting and skip counting, and even some basic problem-solving skills. Students are also introduced to the concept of place value, which is the concept of understanding the value of numbers based on their place in a number sequence. For example, the number “25” has a value of two tens and five ones. To ensure that students understand the material in the lesson, it is important to provide them with practice questions and answers. Here are some practice questions and answers that might be found in the answer key to Lesson 1.5:

• Q: What is the value of the number “25”? A: The value of the number “25” is two tens and five ones.
• Q: What is the difference between addition and subtraction? A: The difference between addition and subtraction is that addition combines two or more numbers to create a larger number, while subtraction takes away from one number to create a smaller number.
• Q: How do you count by 10s? A: To count by 10s, start with any number and add 10 to it. Then, add 10 to the new number, and continue this process until you reach the desired number. 