Videos solutions to help Grade 2 students learn how to use math drawings to represent subtraction with and without decomposition and relate drawings to a written method.

Common Core Standards: 2.OA.1, 2.NBT.7, 2.NBT.9, 2.NBT.5

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Common
Core Math Resources, Lesson Plans & Worksheets for all grades

Common Core Math
Video Lessons, Math Worksheets and Games for Grade 2

Common Core
Math Video Lessons, Math Worksheets and Games for all grades

Lesson 13 Homework

1. Complete the problem by subtracting vertically. Use the place value chart and chips
to model each problem. Show how you change 1 ten for 10 ones when necessary.

b.
54 – 28 = _____

2. Solve vertically. Draw a place value chart and chips to model each problem. Show
how you change 1 ten for 10 ones when necessary.

a. 31 – 19 = _____

d. 67 – 44 = _____

d. 82 – 59 = _____

Subtraction Algorithm Represented as Chip Model

51 - 29 =

This video shows how to use the place value chart and chips to model the problem 52 - 18