Ментальная арифметика. Уровень «просто». Сборник примеров

Автор

Яна Малова

Жанр

Математика

Год написания книги

2020

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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)

4+30 =
30+66 =
30+58 =
61+30 =
30+60 =
30+5 =
30+7 =
30+55 =
8+30 =
30+8 =
30+16 =
9+30 =
30+61 =
64+30 =
30+17 =
56+30 =
30+57 =
30+18 =
19+30 =
58+30 =
30+19 =
30+50 =
62+30 =
67+30 =
30+14 =
63+30 =
30+56 =
30+64 =
30+67 =
30+11 =
30+3 =
68+30 =
30+54 =
59+30 =
65+30 =
66+30 =
30+68 =
1+30 =
30+59 =
55+30 =
18+30 =
50+30 =
30+65 =
12+30 =
30+2 =
5+30 =
30+51 =
30+9 =
30+52 =
57+30 =
6+30 =
30+62 =
30+69 =
17+30 =
7+30 =
30+13 =
10+30 =
3+30 =