\( \qquad \) 1. \( 147.73+44.77 \) 4. 417.75 \( 11.6 \div 4 \) 1.5 192.50 2. \( 9.6+365.84 \) 365.97 12. \( 12 \div 20.6 \) 375.44 3. \( 198-109.7 \) 13. \( 14.5 \div 52.9 \) 88.3 4. \( 93.4-25.83 \) 14. \( 7.47 \div 32.49 \) 67.57 5. \( 700-43.64 \) 15. \( 168 \div 2.47 \) 842.94 6. \( 161.6 \times 1.25 \) 16. \( 64 \div 0.16^{4} \) 202 17. \( 26.6 \div 0.738 \). 7. \( 136 \times 4.8 \) 652.8 8. \( 49 \times 5.07 \) \( 18.7 .56 \div 0.06120 \) 248.43 19. \( 96.45 \div 1.564 \) 9. \( 18.5 \times 0.9 \) 20. \( 3.51 \div 0.03117 \) 10. \( 0.08 \times 87.25 \) 648.00
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Ready for some math time travel? The arithmetic we use today has roots in ancient civilizations, notably the Babylonians, who developed a base-60 number system that influences our measurement of time and geometry. Fast forward to the Renaissance, where mathematicians like Fibonacci introduced the Hindu-Arabic numeral system to Europe—introducing a little something called “zero” and changing the mathematical game forever! When it comes to applying these calculations, ever tried budgeting your monthly expenses? Getting comfortable with basic arithmetic can help you track your income and spending, ensuring you're not living beyond your means! Plus, it’s super satisfying to watch that debt drop every month as you tackle those numbers head-on!