Course of Raku / Essentials / Numbers / Integer numbers

Quiz: Integer numbers

Select all the examples with valid integer numbers.

1	42
1	0
1	-42
1	+100	You can add + if you want.
0	3.14	This is a valid number, but not an integer number.
1	1000
1	1_000
1	10_000
0	10__000	Two underscores are not allowed.
0	_100	A number cannot start with underscore.
0	100_	A number cannot end with underscore.
1	1_0_0_0	This is correct, but looks weird.
1	10_00	This is also correct, but it is not the best choice.
0	50,000	A comma does not split the number into thousands.
0	45 678 901	Spaces are not allowed inside numbers.