Whole Number 2 x 2 - Column Breakout (Level 1)

This math topic practices advanced multiplication skills, focusing on multiplying two 2-digit whole numbers by breaking one number into more manageable parts, a technique known as column breakout or partial products. It is designed to help students understand and perform multiplication through a step-by-step decomposition method. Each problem presents a different pair of numbers to multiply with multiple choice answers demonstrating various ways of breaking down one of the numbers to simplify the multiplication process. This set of problems is part of a broader unit on 2 and 3-digit multiplication.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Multiplication - Whole Number 2 x 2 - Column Breakout Worksheet

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Math worksheet on 'Multiplication - Whole Number 2 x 2 - Column Breakout (Level 1)'. Part of a broader unit on 'Multiplication - 2 and 3 Digit' Learn online: app.mobius.academy/math/units/multiplication_2_and_3_digit/
1
A LaTex expression showing \begin{aligned}21\hphantom{.}\\[-0.5em]\underline{ multiplied by 25\hphantom{.}}\end{aligned}\\
How can you multiply 21 by 25 by breaking 25 apart
a A LaTex expression showing (21 multiplied by 20)+(21 multiplied by 5)
b A LaTex expression showing (21 + 20) multiplied by (21 + 5)
2
A LaTex expression showing \begin{aligned}22\hphantom{.}\\[-0.5em]\underline{ multiplied by 15\hphantom{.}}\end{aligned}\\
How can you multiply 22 by 15 by breaking 15 apart
a A LaTex expression showing (22 multiplied by 10)+(22 multiplied by 5)
b A LaTex expression showing (22 multiplied by 10) multiplied by (22 multiplied by 5)
3
A LaTex expression showing \begin{aligned}21\hphantom{.}\\[-0.5em]\underline{ multiplied by 28\hphantom{.}}\end{aligned}\\
How can you multiply 21 by 28 by breaking 28 apart
a A LaTex expression showing (21 multiplied by 20)+(21 multiplied by 8)
b A LaTex expression showing (21 multiplied by 20)+(21 multiplied by 1)
4
A LaTex expression showing \begin{aligned}23\hphantom{.}\\[-0.5em]\underline{ multiplied by 29\hphantom{.}}\end{aligned}\\
How can you multiply 23 by 29 by breaking 29 apart
a A LaTex expression showing (23 multiplied by 20)+(23 multiplied by 9)
b A LaTex expression showing (23 multiplied by 20)+(23 multiplied by 3)
5
A LaTex expression showing \begin{aligned}29\hphantom{.}\\[-0.5em]\underline{ multiplied by 26\hphantom{.}}\end{aligned}\\
How can you multiply 29 by 26 by breaking 26 apart
a A LaTex expression showing (29 multiplied by 20)+(29 multiplied by 6)
b A LaTex expression showing (29 multiplied by 20) multiplied by (29 multiplied by 6)
6
A LaTex expression showing \begin{aligned}29\hphantom{.}\\[-0.5em]\underline{ multiplied by 17\hphantom{.}}\end{aligned}\\
How can you multiply 29 by 17 by breaking 17 apart
a A LaTex expression showing (29 multiplied by 10)+(29 multiplied by 9)
b A LaTex expression showing (29 multiplied by 10)+(29 multiplied by 7)
7
A LaTex expression showing \begin{aligned}19\hphantom{.}\\[-0.5em]\underline{ multiplied by 28\hphantom{.}}\end{aligned}\\
How can you multiply 19 by 28 by breaking 28 apart
a A LaTex expression showing (19 multiplied by 20)+(19 multiplied by 8)
b A LaTex expression showing (19 + 20) multiplied by (19 + 8)