It is nothing. But a quarter past ten is a quarter hour after ten: that is 10:15 in the morning or evening.
The word 'ten' is a noun, it doesn't have a past tense.
Held
lead / led / ledHe has led the team for ten years. (past participle)
Absolutely nothing of importance
it's fifteen past ten.
Not so sure about one qauter, but one quarter of six is 1.5
25
the past ten of think is
Yes, "ten-thirty," "half past ten," and "thirty past ten" all refer to the same time: 10:30. These phrases are different ways of expressing the time, with "half past" being the most common informal expression. In all cases, they indicate that it is thirty minutes after ten o'clock.
The word 'ten' is a noun, it doesn't have a past tense.
Quarter to 10.
The phrase "twenty past ten" refers to the time 10:20. It indicates that it is twenty minutes after ten o'clock.
The past tense for eat is ate.
40 minutes
a quarter past ten is 'dix heures et quart' in French.
Twenty minutes.
one forth is one qauter eg. one forth of 100 is 25.