J =
[tex]48 \times (10 + 3) = 48 \times 10 + 48 \times 3[/tex]
[tex]480 + 144 = 624[/tex]
H =
[tex]11 \times (40 - 1) = 11 \times 40 - 1 \times 11[/tex]
[tex]440 - 11 = 429[/tex]
I =
[tex]43 \times (100 - 1) = 43 \times 100 - 43[/tex]
[tex]4300 - 43 = 4257[/tex]
K =
[tex]12 \times 39 = 11 \times 39 + 39 [/tex]
[tex]429 + 39 = 468[/tex]
L =
[tex]11(80 - 1) = 11 \times 80 - 11[/tex]
[tex]880 - 11 = 869[/tex]
