Lesson: Column Subtraction of Three-Digit Numbers: Subtracting across Zeros Mathematics • 2nd Grade

In this lesson, we will learn how to subtract from a three-digit number with zero tens and record the calculation in columns.

Lesson Plan

Students will be able to

subtract two- and three-digit numbers from three-digit numbers that contain at least one zero,
make connections between concrete and abstract models of regrouping,
use a formal algorithm to represent calculations,
solve word problems that require subtracting two- or three-digit numbers from three-digit numbers that contain at least one zero.

Q1:

Subtract 335 from 401.

Q2:

What is 604 minus 174?

Q3:

Solve this problem to find .