Whole Number 2 x 1 - Column Breakout (Level 3)

This math topic focuses on practicing the method of column breakout for multiplying 2-digit whole numbers by 1-digit whole numbers. Students are expected to decompose the 2-digit number into tens and ones, and then multiply each component separately by the single-digit multiplier to solve the problems. Each question requires identifying the correct decomposition and calculation to match a given expression. The problems range from multiplying numbers like 18 by 6 up to multiplying 26 by 6, enhancing skills in mental math and understanding the distributive property of 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 1 - Column Breakout Worksheet

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Math worksheet on 'Multiplication - Whole Number 2 x 1 - Column Breakout (Level 3)'. Part of a broader unit on 'Multiplication - 1 and 2 Digit - Intro' Learn online: app.mobius.academy/math/units/multiplication_integers_1_and_2_digit/
1
A LaTex expression showing \begin{aligned}22\hphantom{.}\\[-0.5em]\underline{ multiplied by 9\hphantom{.}}\end{aligned}\\
How can you multiply 22 by 9 by breaking 22 apart
a A LaTex expression showing (20 + 9) multiplied by (2 + 9)
b A LaTex expression showing (20 multiplied by 9)+(2 multiplied by 9)
2
A LaTex expression showing \begin{aligned}15\hphantom{.}\\[-0.5em]\underline{ multiplied by 6\hphantom{.}}\end{aligned}\\
How can you multiply 15 by 6 by breaking 15 apart
a A LaTex expression showing (10 multiplied by 6) multiplied by (5 multiplied by 6)
b A LaTex expression showing (10 multiplied by 6)+(5 multiplied by 6)
3
A LaTex expression showing \begin{aligned}23\hphantom{.}\\[-0.5em]\underline{ multiplied by 7\hphantom{.}}\end{aligned}\\
How can you multiply 23 by 7 by breaking 23 apart
a A LaTex expression showing (20 multiplied by 7)+(3 multiplied by 7)
b A LaTex expression showing (20 multiplied by 7) multiplied by (3 multiplied by 7)
4
A LaTex expression showing \begin{aligned}11\hphantom{.}\\[-0.5em]\underline{ multiplied by 5\hphantom{.}}\end{aligned}\\
How can you multiply 11 by 5 by breaking 11 apart
a A LaTex expression showing (10 multiplied by 5)+(5 multiplied by 5)
b A LaTex expression showing (10 multiplied by 5)+(1 multiplied by 5)
5
A LaTex expression showing \begin{aligned}26\hphantom{.}\\[-0.5em]\underline{ multiplied by 4\hphantom{.}}\end{aligned}\\
How can you multiply 26 by 4 by breaking 26 apart
a A LaTex expression showing (20 multiplied by 4)+(4 multiplied by 4)
b A LaTex expression showing (20 multiplied by 4)+(6 multiplied by 4)
6
A LaTex expression showing \begin{aligned}12\hphantom{.}\\[-0.5em]\underline{ multiplied by 6\hphantom{.}}\end{aligned}\\
How can you multiply 12 by 6 by breaking 12 apart
a A LaTex expression showing (10 multiplied by 6) multiplied by (2 multiplied by 6)
b A LaTex expression showing (10 multiplied by 6)+(2 multiplied by 6)
7
A LaTex expression showing \begin{aligned}16\hphantom{.}\\[-0.5em]\underline{ multiplied by 5\hphantom{.}}\end{aligned}\\
How can you multiply 16 by 5 by breaking 16 apart
a A LaTex expression showing (10 multiplied by 5)+(6 multiplied by 5)
b A LaTex expression showing (10 + 5) multiplied by (6 + 5)