Look and say. e.g. It's half past four.
One
21
21
2
10
2
3
3
8
75
11 12
12
7
2
2
10
3
3
8
11
421
12
10
11
2
10
3
3.
$
700
785
сделайте

слева направо

it's half past four, it's two o'clock, it's a quarter past two, it's six o'clock

it's a quarter to eight, it's half past nine, it's a quarter to five, it's ten o'clock

it's a quarter past eleven, it's half past twelve, it's a quarter to four, it's seven o'clock