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Ментальная арифметика. Уровень «просто». Сборник примеров
Настройки чтения
Размер шрифта
Высота строк
Поля
69+20 =
1+20 =
20+23 =
3+20 =
77+20 =
65+20 =
20+59 =
4+20 =
10+20 =
20+67 =
76+20 =
20+55 =
20+5 =
15+20 =
14+20 =
20+69 =
16+20 =
73+20 =
20+14 =
79+20 =
54+20 =
20+21 =
2+20 =
20+76 =
23+20 =
28+20 =
50+20 =
63+20 =
20+64 =
20+66 =
24+20 =
51+20 =
20+22 =
20+25 =
71+20 =
20+27 =
72+20 =
53+20 =
20+61 =
74+20 =
20+65 =
55+20 =
26+20 =
20+11 =
12+20 =
20+74 =
25+20 =
60+20 =
67+20 =
20+73 =
29+20 =
61+20 =
64+20 =
52+20 =
66+20 =
68+20 =
78+20 =
7 РАЗДЕЛ (ДВУЗНАЧНЫЕ ЧИСЛА 30+, +30)
30+16 =
9+30 =
30+61 =
61+30 =
30+60 =
30+52 =
16+30 =
30+62 =
30+5 =
64+30 =
4+30 =
30+66 =
30+58 =
30+7 =
56+30 =
30+57 =
30+18 =
19+30 =
30+11 =
58+30 =
30+19 =
30+55 =
8+30 =
30+8 =
30+17 =
30+50 =
62+30 =
67+30 =
30+64 =
57+30 =
6+30 =
30+67 =
30+3 =
68+30 =
54+30 =
30+53 =
30+15 =
30+54 =
59+30 =
65+30 =
1+20 =
20+23 =
3+20 =
77+20 =
65+20 =
20+59 =
4+20 =
10+20 =
20+67 =
76+20 =
20+55 =
20+5 =
15+20 =
14+20 =
20+69 =
16+20 =
73+20 =
20+14 =
79+20 =
54+20 =
20+21 =
2+20 =
20+76 =
23+20 =
28+20 =
50+20 =
63+20 =
20+64 =
20+66 =
24+20 =
51+20 =
20+22 =
20+25 =
71+20 =
20+27 =
72+20 =
53+20 =
20+61 =
74+20 =
20+65 =
55+20 =
26+20 =
20+11 =
12+20 =
20+74 =
25+20 =
60+20 =
67+20 =
20+73 =
29+20 =
61+20 =
64+20 =
52+20 =
66+20 =
68+20 =
78+20 =
7 РАЗДЕЛ (ДВУЗНАЧНЫЕ ЧИСЛА 30+, +30)
30+16 =
9+30 =
30+61 =
61+30 =
30+60 =
30+52 =
16+30 =
30+62 =
30+5 =
64+30 =
4+30 =
30+66 =
30+58 =
30+7 =
56+30 =
30+57 =
30+18 =
19+30 =
30+11 =
58+30 =
30+19 =
30+55 =
8+30 =
30+8 =
30+17 =
30+50 =
62+30 =
67+30 =
30+64 =
57+30 =
6+30 =
30+67 =
30+3 =
68+30 =
54+30 =
30+53 =
30+15 =
30+54 =
59+30 =
65+30 =
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