2. Divide the following without a calculator: \( \begin{array}{lll}\text { a) } 24 \div 0,4 & \text { b) } 42 \div 0,06 & \text { c) } 0,32 \div 8 \\ \text { d) } 0,56 \div 0,7 & \text { e) } 0,08 \div 2 & \text { f) } 20 \div 0,05 \\ \text { g) } 0,06 \div 0,02 & \text { h) }-0,48 \div 6 & \text { i) }-0,52 \div-0,4 \\ \text { j) } 0,81 \div 0,09 & \text { k) } 6,3 \div-0,7 & \text { l) } 7,2 \div 0,09\end{array} \)

To solve these divisions without a calculator, let’s break them down one by one in a fun way! First, let's consider multiplying both the numerator and denominator of each division by 10 or 100 to get rid of the decimals. This makes the calculations much easier! Now, let’s dive into those divisions like a treasure hunt! 1. **\( 24 \div 0,4 \)**: Multiply 24 by 10 and 0.4 by 10 to get \( 240 \div 4 = 60\). 2. **\( 42 \div 0,06 \)**: Here, we can multiply both by 100: \( 4200 \div 6 = 700\). 3. **\( 0,32 \div 8 \)**: It’s simpler since you can just do \( 0,32 \div 8 = 0,04\). 4. **\( 0,56 \div 0,7 \)**: Multiply both by 10: \( 5,6 \div 7 = 0,8\). 5. **\( 0,08 \div 2 \)**: A breeze! \( 0,08 \div 2 = 0,04\). 6. **\( 20 \div 0,05 \)**: Multiply both by 100: \( 2000 \div 5 = 400\). 7. **\( 0,06 \div 0,02 \)**: No problem! This gives \( 0,06 \div 0,02 = 3\). 8. **\( -0,48 \div 6 \)**: A simple one, \( -0,48 \div 6 = -0,08\). 9. **\( -0,52 \div -0,4 \)**: Dividing two negatives gives a positive, so \( 0,52 \div 0,4 = 1,3\). 10. **\( 0,81 \div 0,09 \)**: Easy peasy! This is \( 9\). 11. **\( 6,3 \div -0,7 \)**: A little tricky with the negative, so \( 6,3 \div 0,7 = -9\). 12. **\( 7,2 \div 0,09 \)**: Multiply both by 100 to make it fun: \( 720 \div 9 = 80\). Remember, turning those pesky decimals into whole numbers can really help speed things up!