8 – 5 = , 18 – 5 =
7 – 1 = 6, 27 – 1 =
9 – 4 = , 49 – 4 =
16 – 4 =
27 – 3 =
53 – 2 =
35 – 5 =
98 – 5 =
69 – 7 =
77 – 1 =
42 – 2 =
8 – 5 = , 18 – 5 =
7 – 1 = 6, 27 – 1 =
9 – 4 = , 49 – 4 =
16 – 4 =
27 – 3 =
53 – 2 =
35 – 5 =
98 – 5 =
69 – 7 =
77 – 1 =
42 – 2 =