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21:56 = 3 / 8 = 12 △ () = ()
21:56 = 3 / 8 = 12 ÷ (32) = (0.375)
Example: 9:16 six minutes past nine: 7:34 12:01 15:09 1:56 17:21
thirty four past seven
one past twelve
nine past fifteen
four to two
twentyone past five p.m.
Simple calculation (2 / 5 + 1 / 6-2 / 15) × 30
Simple calculation that can be simplified
(2 / 5 + 1 / 6-2 / 15) × 30
2 / 5 × 30 + 1 / 6 × 30-2 / 15 × 30
RELATED INFORMATIONS
- 1. Write the simple calculation process (1) 1 and 7 / 3 * 5 / 2 + 2 and 7 / 4 * 5 / 2 + 2 / 5 (2) 2.5 * 12.5 * 3.2 (3) (8 / 2) (3) (7 / 8-7 / 12) * 2.4/1 / 7 (4) 805 * 101-805
- 2. 3 of 7 parts plus 3.6 minus 1 of 7 parts plus 6.4 (simple calculation)
- 3. One in three, one in two minus one in two, one in four equals zero with brackets
- 4. 3.14 times 1 and 3 / 8 plus 0.314 times 25 / 4 minus 31.4 times 0.2
- 5. 11 out of 8 minus 11 out of 15
- 6. 2. 13 and 21 / 13 times 7, please calculate
- 7. (21:22:11 on the 22nd) Ship a flows downstream from wharf a, and ship B flows upstream from wharf B. the two ships are traveling at the same time and meet at the midpoint. The speed of ship B downstream is twice that of ship a upstream. The known water speed is 4km / h. how to calculate the speed of the two ships in still water?
- 8. How much is 36 × 1 / 3 minus 1 / 4
- 9. How much is 3 minus 5?
- 10. What's 5 and 2 / 5 minus 8
- 11. A resistor is connected in series with a 3-ohm resistor and then connected in the original circuit. If the current passing through becomes 4 / 5 of the original current, what is the resistance value of this resistor?
- 12. 100 points
- 13. A fraction, the numerator plus 1, is 3 / 5, and the denominator minus 1, is 4 / 7 You can't use equations to list the formulas. It's a problem for primary school students
- 14. 5 / 12, 5 / 8, 2 / 5, 1 / 15, 11 / 40, 7 / 24 divide these six numbers into three groups, so that the sum of two fractions in each group is equal
- 15. 3 / 7 of a number is 21. What is 1 / 7 of this number?
- 16. 6 out of 7 plus 2 out of 9 minus 1 out of 21
- 17. 9 x (x is an integer), when x equals () the number equals 0
- 18. How to solve that 2x + 30x equals 13.8
- 19. (78 + 91 + 80 + 79 + x) / 4 + 6 = x what does x equal
- 20. A simple calculation method for 1 + 3 + 6 + 10 + 15 + 21 + 28. + 4950 + 5050