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$\text{fifteen - five = 15 - 5 = 10}$

$\text{ten - one = 10 - 1 = 9}$

$\text{twelve - one = 12 - 1 = 11}$

$\text{fourteen - nine = 14 - 9 = 5}$

$\text{eleven - eight = 11 - 8 =3}$

$\text{eight - four = 8 - 4 = 4}$

$\text{thirteen - three = 13 - 3 =10}$

$\text{nine - five = 9 - 5 = 4}$

$\text{ eight - two = 8 - 2 = 6}$

$\text{fourteen - ten = 14 - 10 = 4}$

`@nguyenbaognuyen12`

1] ten,2]four,3]nine,4]ten,5]elevent,6]four,7]five,8]six,9]three,10]four.

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