1. \( 135.33+23.36= \) 2. \( 312.36-37.65= \) 3. \( 144.31 \times 3.5= \) 4. \( 327.6+5.2= \) EXER \( 10: \) Perform the indi 1. \( 134.13+23.36= \) 2. \( 310.26-37.65= \) 3. \( 144.71 \times 3.5= \) 4. \( 353.6+5.2= \) EXER \( 11: \) Perform the ind 1. \( 534.13+23.36= \) 2. \( 410.26-37.65= \) 3. \( 544.71 \times 3.5= \) 4. \( 464.36+5.2= \) EXER \( 12: \) Perform the ind

Did you know that addition and subtraction are among the most ancient mathematical operations? They date back to prehistoric times when early humans used tally sticks to keep track of resources. Fast forward a few thousand years, and here we are, today using advanced calculators and computers – but the fundamental principles of arithmetic haven’t changed a bit! On the flip side, mastering decimal arithmetic is crucial in everyday life. From making sure you get the right change at the store to understanding your budget, these skills come in handy more often than you might realize! So, the next time you perform calculations, think of it as empowering yourself to handle your finances like a pro!