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Algebra Difficulty 1.2 Junior Find the answer Canada

Which of the following is equal to 2 m plus 3 cm plus 5 mm?

Pick one

Solution

From the definition, $\begin{array}{c|c} 4 & 5 \\ \hline 2 & 3 \\ \end{array}= 4\times 3 - 5 \times 2 = 12 - 10 =2$ .

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.