KB Multiply in columns - 2 digit by 2 digit Grade 4 Multiplication Worksheet Find the product. 1. \[ \begin{array}{r} 35 \\ \times \quad 97 \\ \hline 3,395 \end{array} \] 4. \( \begin{array}{r}53 \\ \times \quad 95 \\ \hline\end{array} \) 2. \( \begin{array}{r}36 \\ \times \quad 20 \\ \hline\end{array} \) \( \qquad \) 5. \( \begin{array}{r}71 \\ \times \quad 74 \\ \hline\end{array} \) \( \qquad \) 6. \( \begin{array}{r}74 \\ \times \quad 11 \\ \hline\end{array} \) \( \begin{array}{r}19 \\ \times \quad 77 \\ \hline\end{array} \) 8. \[ \begin{array}{r} 96 \\ \times \quad 58 \\ \hline \end{array} \] 9. \[ \begin{array}{r} 68 \\ \times \quad 17 \\ \hline \end{array} \]
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The Deep Dive
Multiplication has a fascinating history that dates back to ancient civilizations. The Babylonians used a base-60 number system and had their own methods for multiplication around 2000 BC. Fast forward to the Middle Ages, and we see the emergence of algorithms that resemble our modern multiplication techniques. This long history showcases the evolution of math as a tool that has helped shape societies and economies throughout time! Practicing multiplication in columns helps develop number sense, but small mistakes can creep in. One common challenge is misaligning digits—make sure to line up numbers correctly! Also, don’t forget to carry over any extra values when the product exceeds ten in a column. Keep an eye on those digits, and you'll be multiplying like a pro in no time!