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Multiplication - 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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Whole Number 2 x 2 - Column Breakout

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


How can you multiply 15 by 11 by breaking 11 apart

15.×11.‾\begin{aligned}15\hphantom{.}\\[-0.5em]\underline{\times 11\hphantom{.}}\end{aligned}\\

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
How can you multiply 12 by 29 by breaking 29 apart
A LaTex expression showing \begin{aligned}12\hphantom{.}\\[-0.5em]\underline{ multiplied by 29\hphantom{.}}\end{aligned}\\
a A LaTex expression showing (12 multiplied by 17)+(12 multiplied by 9)
b A LaTex expression showing (10 multiplied by 20)+(10 multiplied by 9)
c A LaTex expression showing (11 multiplied by 20)+(11 multiplied by 9)
d A LaTex expression showing (12 multiplied by 23)+(12 multiplied by 9)
e A LaTex expression showing (12 multiplied by 22)+(12 multiplied by 9)
f A LaTex expression showing (12 multiplied by 20)+(12 multiplied by 9)
2
How can you multiply 16 by 29 by breaking 29 apart
A LaTex expression showing \begin{aligned}16\hphantom{.}\\[-0.5em]\underline{ multiplied by 29\hphantom{.}}\end{aligned}\\
a A LaTex expression showing (15 multiplied by 20)+(15 multiplied by 9)
b A LaTex expression showing (16 multiplied by 20)+(16 multiplied by 13)
c A LaTex expression showing (16 multiplied by 15)+(16 multiplied by 9)
d A LaTex expression showing (16 multiplied by 20)+(16 multiplied by 9)
e A LaTex expression showing (16 multiplied by 19)+(16 multiplied by 9)
f A LaTex expression showing (16 multiplied by 22)+(16 multiplied by 9)
3
How can you multiply 25 by 22 by breaking 22 apart
A LaTex expression showing \begin{aligned}25\hphantom{.}\\[-0.5em]\underline{ multiplied by 22\hphantom{.}}\end{aligned}\\
a A LaTex expression showing (28 multiplied by 20)+(28 multiplied by 2)
b A LaTex expression showing (25 multiplied by 17)+(25 multiplied by 2)
c A LaTex expression showing (25 multiplied by 24)+(25 multiplied by 2)
d A LaTex expression showing (25 multiplied by 20)+(25 multiplied by 1)
e A LaTex expression showing (25 multiplied by 20)+(25 multiplied by 2)
f A LaTex expression showing (25 multiplied by 21)+(25 multiplied by 2)
4
How can you multiply 28 by 11 by breaking 11 apart
A LaTex expression showing \begin{aligned}28\hphantom{.}\\[-0.5em]\underline{ multiplied by 11\hphantom{.}}\end{aligned}\\
a A LaTex expression showing (28 multiplied by 14)+(28 multiplied by 1)
b A LaTex expression showing (31 multiplied by 10)+(31 multiplied by 1)
c A LaTex expression showing (29 multiplied by 10)+(29 multiplied by 1)
d A LaTex expression showing (28 multiplied by 10)+(28 multiplied by 3)
e A LaTex expression showing (28 multiplied by 10)+(28 multiplied by 4)
f A LaTex expression showing (28 multiplied by 10)+(28 multiplied by 1)
5
How can you multiply 29 by 15 by breaking 15 apart
A LaTex expression showing \begin{aligned}29\hphantom{.}\\[-0.5em]\underline{ multiplied by 15\hphantom{.}}\end{aligned}\\
a A LaTex expression showing (29 multiplied by 10)+(29 multiplied by 5)
b A LaTex expression showing (29 multiplied by 10)+(29 multiplied by 3)
c A LaTex expression showing (29 multiplied by 10)+(29 multiplied by 6)
d A LaTex expression showing (29 multiplied by 10)+(29 multiplied by 9)
e A LaTex expression showing (29 multiplied by 10)+(29 multiplied by 2)
f A LaTex expression showing (32 multiplied by 10)+(32 multiplied by 5)
6
How can you multiply 18 by 21 by breaking 21 apart
A LaTex expression showing \begin{aligned}18\hphantom{.}\\[-0.5em]\underline{ multiplied by 21\hphantom{.}}\end{aligned}\\
a A LaTex expression showing (18 multiplied by 20)+(18 multiplied by 3)
b A LaTex expression showing (18 multiplied by 20)+(18 multiplied by 1)
c A LaTex expression showing (18 multiplied by 24)+(18 multiplied by 1)
d A LaTex expression showing (18 multiplied by 21)+(18 multiplied by 1)
e A LaTex expression showing (18 multiplied by 19)+(18 multiplied by 1)
f A LaTex expression showing (21 multiplied by 20)+(21 multiplied by 1)
7
How can you multiply 11 by 14 by breaking 14 apart
A LaTex expression showing \begin{aligned}11\hphantom{.}\\[-0.5em]\underline{ multiplied by 14\hphantom{.}}\end{aligned}\\
a A LaTex expression showing (14 multiplied by 10)+(14 multiplied by 4)
b A LaTex expression showing (11 multiplied by 10)+(11 multiplied by 2)
c A LaTex expression showing (6 multiplied by 10)+(6 multiplied by 4)
d A LaTex expression showing (10 multiplied by 10)+(10 multiplied by 4)
e A LaTex expression showing (11 multiplied by 10)+(11 multiplied by 4)
f A LaTex expression showing (11 multiplied by 5)+(11 multiplied by 4)