Simple calculation of 5.74 * 1.8-0.2de

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• 2. How to calculate 2.5 * 8.74 * 1.25 * 0.4 * 0.8
• 3. Simple calculation: 0.5 × 1.25 × 2 × 8 × 11
• 4. 1+2-3+4+5-6+7+8-9+...+28+29-30=
• 5. 1+2-3+4+5-6+7+8-9+10+… +28+29-30=______ ．
• 6. Simple calculation 1 + 2-3 + 4 + 5-6 ellipsis + 28 + 29-30 =?
• 7. Calculation 1 + 3 + 5 + 7 +... + 29-2-4-6 -. - 28
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• 11. Simple calculation of 5.26 + 3.43 + 0.74
• 12. 2.74 + 12.6 + 7.4 + 3.26 = simple calculation
• 13. 365-26-74 simple operation
• 14. 3.17-2.74+4.7+5.29-0.26+6.3
• 15. 3.17-2.74 + 4.7 + 5.26-0.26 + 6.3 simple calculation
• 16. A simple method is used to calculate: 7.74 × (2.8-1.3) + 1.5 × 2.26
• 17. Simple calculation: 6.2 * 12.5 * 25 * 8
• 18. 5 / 9 * 80% * 3 / 4,3 / 8 * 25% + 4 / 8 * 1 / 4,48 * (11 / 12-12.5% - 1 / 6), 7 / 8-7 / 8 * 20% can be calculated simply
• 19. Simple calculation: (11 / 12-7 / 6 + 3 / 4-13 / 16) × (- 48) （-11）÷（-1/13）×（-13） There must be a process, and it's very simple It must be simple, not dead
• 20. Ask help 48 times 12 add 16 times 64 simple method how to calculate