630 / 9 simple calculation

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• 1. A simple calculation method of 630 △ 42
• 2. Known: a = 19911991 Q: what is the remainder of a divided by 13? Clear process, easy to understand, thank you!
• 3. Known: a = 19911991991 1991, Q: what is the remainder of a divided by 13?
• 4. ·Find the sum of all two digits divided by 4 and 1 (using tolerance formula)
• 5. How to calculate 240 divided by 5
• 6. The problem of "a number divided by a score" in Mathematics It takes four fifths of an hour for a lorry to arrive at a speed of 45km per hour from place a to place B. It takes only two thirds of an hour for the lorry to return. How many kilometers per hour is the speed of the lorry when it returns
• 7. (1 / 5 + 4 / 5 * 1 / 8) divide by 1 / 5, what can be easily calculated should be simply calculated
• 8. How to calculate a question like 1 / 4 x divided by 7 / 8 = 3 / 4
• 9. 1 / 5 times 2 = 1 / 6 times () = 1 / 7 divided by () Completion
• 10. 21 divided by 7 / 3 (less than, greater than or equal to) 21 divided by 3 / 7
• 11. Simple calculation of 96 × 125 × 5
• 12. Simple calculation 18.35 - (8035 + 6 / 7) 18.35-（8035+6/7） 14.25*14/5+1.8*3/4 （3,2/3-1/2）/（1,1/6+1/2） 6.3/[（4,1/2-0.07*50）/1,1/2]
• 13. A simple calculation of 450 divided by 75
• 14. The oil yield of rapeseed is 42%. How many kilograms of oil can be extracted from 2100Kg rapeseed? Don't use the equation
• 15. The oil yield of rapeseed is 42%, how many kilograms of rapeseed is needed to extract 200 kilograms of rapeseed oil
• 16. 16. The oil yield of rapeseed is 42%. How many kg of rapeseed is needed to extract 2100 kg of oil?
• 17. How to calculate 2000 / 2100 * 2002
• 18. How to calculate 2.18 + 7.2 - [4.2-1.82] with a simple method
• 19. A simple method of multiplying 12 by 12 molecule 11
• 20. How to calculate 18 × 45 + 18 × 55 simply You must answer now