## Addition/Subtraction Problems - Section 2: Applying the Knowledge!

Addition/Subtraction Problems

# Mentally Speaking!

Unit 1: Numbers & Operation in Base Ten Grade 2
Lesson 5 of 10

## Big Idea: Using base ten blocks and place value, students explore how to become more fluent in adding and subtracting two-digit numbers without regrouping.

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35 teachers like this lesson
Standards:
Subject(s):
Math, Place Value, Number Sense and Operations, reasoning, discussions, base ten, Mental Math
40 minutes

### Carol Redfield

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