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Яна Малова - Mental maths. Simple level exercises

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Название:
Mental maths. Simple level exercises
Автор:
Яна Малова
Жанр:
Математика / на английском языке
Год:
неизвестен
ISBN:
9785449833662
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This manual includes all possible combinations of single and double digits at the level “SIMPLE” (addition). The collection contains more than 700 examples (10 options), divided into sections according to the composition of numbers.The manual is designed to solve examples of mental arithmetic at the “SIMPLE” level on the abacus and mentally. It is recommended to use both for self-development of the acquired counting skills, and in preparation for classes and tests in mental arithmetic.

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Mental maths

Simple level exercises

Яна Малова

ISBN 978-5-4498-3366-2

Created with Ridero smart publishing system

MENTAL MATHS

SIMPLE

EXERCISES

2020г.

This manual includes all possible combinations of single and double digits at the level «SIMPLE» (addition). The collection contains more than 700 examples (10 options), divided into sections according to the composition of numbers. Each version has 13 sections (from single digits: 1 – 5 to double digits: 90+, +90).

The manual is designed to solve examples of mental arithmetic at the «SIMPLE» level on the abacus and mentally. It is recommended to use both for self-development of the acquired counting skills, and in preparation for classes and tests in mental arithmetic.

Malova Y.A. Methodist, the teacher of mental arithmetic, 2020.

1 VARIANT

1 SECTION (NUMBERS 1 – 5)

2+5 =
1+1 =
5+3 =
1+2 =
3+5 =
1+3 =
5+1 =
2+1 =
2+2 =
5+4 =
3+1 =
1+5 =
4+5 =
5+2 =

2 SECTION (NUMBERS 1 – 9)

3+1 =
1+5 =
2+5 =
8+1 =
1+1 =
5+3 =
1+2 =
5+2 =
7+2 =
3+5 =
7+1 =
1+3 =
5+1 =
2+1 =
2+7 =
6+1 =
2+2 =
5+4 =
1+7 =
3+6 =
6+2 =
1+8 =
4+5 =
6+3 =
1+6 =
2+6 =

3 SECTION (NUMBERS 10 – 50)

20+10 =
50+20 =
20+50 =
30+10 =
50+40 =
10+50 =
20+20 =
40+50 =
10+30 =
50+10 =
10+10 =
50+30 =
10+20 =
30+50 =

4 SECTION (NUMBERS 10 – 90)

30+60 =
10+80 =
40+50 =
20+50 =
80+10 =
60+20 =
10+10 =
20+60 =
50+30 =
10+20 =
30+50 =
20+70 =
60+10 =
20+20 =
10+30 =
20+10 =
50+10 =
50+40 =
30+10 =
10+50 =
10+70 =
50+20 =
70+20 =
60+30 =
10+60 =
70+10 =

5 SECTION (DOUBLE FIGURES 10+, +10)

10+40=
10+42=
4+10 =
10+63=
7+10 =
10+55=
11+10=
10+41=
12+10 =
13+10 =
10+44=
14+10=
15+10 =
10+1 =
10+23=
10+24=
10+79=
10+4 =
10+52=
10+53=
10+54=
10+58=
10+5 =
10+6 =
10+8 =
10+43=
2+10 =
10+9=
10+57=
10+10 =
5+10 =
10+11 =
10+56=
10+78=
10+12 =
6+10 =
10+13 =
10+60=
10+14 =
10+15 =
10+2 =
10+3 =
9+10 =
10+16 =
19+10 =
10+50=
10+32=
27+10 =
8+10 =
10+17 =
10+20 =
10+22=
10+25=
10+26=
10+33=
10+27=
72+10 =
10+28=
10+18 =
71+10 =
10+19=
10+65=
10+66=
33+10 =
10+29=
10+30=
10+31=
10+34=
10+35=
10+36=
20+10 =
10+37=
10+88=
10+85=
10+38=
24+10 =
10+21=
10+39=
10+45=
10+67=
10+46=
22+10 =
10+47=
25+10 =
10+48=
16+10 =
51+10 =
10+49=
28+10 =
10+51=
53+10 =
10+59=
10+62=
10+64=
10+68=
10+70=
10+72=
10+73=
10+74=
10+75=
10+76=
10+77=
10+80=
10+81=
10+82=
10+83=
10+84=
10+86=
10+87=
10+89=
29+10 =
10+69=
1+10 =
3+10 =
10+61=
17+10 =
10+7 =
48+10 =
18+10 =
52+10 =
81+10 =
21+10 =
10+71=
41+10 =
23+10 =
26+10 =
30+10 =
38+10 =
84+10 =
74+10 =
68+10 =
89+10 =
31+10 =
80+10 =
32+10 =
36+10 =
56+10 =
37+10 =
39+10 =
44+10 =
45+10 =
47+10 =
63+10 =
43+10 =
49+10 =
50+10 =
54+10 =
82+10 =
64+10 =
34+10 =
46+10 =
55+10 =
57+10 =
78+10 =
40+10 =
58 +10 =
59+10 =
60+10 =
62+10 =
66+10 =
70+10 =
73+10 =
67+10 =
42+10 =
87+10 =
75+10 =
61+10 =
86+10 =
88+10 =
76+10 =
65+10 =
69+10 =
35+10 =
77+10 =
79+10 =
83+10 =
85+10 =

6 SECTION (DOUBLE FIGURES 20+, +20)

17+20 =
19+20 =
21+20 =
6+20 =
20+7 =
7+20 =
9+20 =
20+2 =
20+6 =
20+8 =
20+10 =
20+16 =
20+57 =
20+1 =
20+58 =
20+18 =
20+19 =
18+20 =
20+20 =
20+28 =
8+20 =
20+29 =
20+50 =
20+17 =
22+20 =
20+51 =
20+52 =
20+53 =
20+78 =
20+9 =
20+54 =
20+56 =
20+77 =
20+62 =
5+20 =
20+68 =
20+24 =
20+72 =
20+12 =
20+75 =
56+20 =
20+79 =
27+20
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+71 =
20+3 =
20+4 =
20+5 =
15+20 =
16+20 =
2+20 =
20+76 =
23+20 =
28+20 =
29+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 =
20+13 =
20+63=
20+15 =
57+20 =
58+20 =
20+70 =
59+20 =
11+20 =
12+20 =
13+20 =
20+60 =
14+20 =
20+69 =
20+74 =
25+20 =
60+20 =
67+20 =
20+73 =
61+20 =
73+20 =
20+14 =
20+21 =
62+20 =
20+26 =
64+20 =
52+20 =
79+20 =
54+20 =
66+20 =
68+20 =
70+20 =
75+20 =
78+20 =

7 SECTION (DOUBLE FIGURES 30+, +30)

30+58 =
61+30 =
30+60 =
30+5 =
30+2 =
30+7 =
30+55 =
8+30 =
30+8 =
30+16 =
30+61 =
64+30 =
30+17 =
30+19 =
30+50 =
62+30 =
30+14 =
63+30 =
30+56 =
30+64 =
30+67 =
30+11 =
30+3 =
30+68 =
1+30 =
30+59 =
5+30 =
30+51 =
30+9 =
4+30 =
30+66 =
30+52 =
57+30 =
6+30 =
17+30 =
7+30 =
30+13 =
9+30 =
10+30 =
55+30 =
30+65 =
12+30 =
3+30 =
13+30 =
14+30 =
69+30 =
15+30 =
52+30 =
2+30 =
16+30 =
18+30 =
50+30 =
30+10 =
51+30 =
30+12 =
30+15 =
11+30 =
30+6 =
30+1 =
60+30 =
30+4 =
30+63 =
53+30 =
68+30 =
30+62 =
54+30 =
30+53 =
30+69 =
56+30 =
30+57 =
30+18 =
19+30 =
58+30 =
30+54 =
59+30 =
65+30 =
66+30 =
67+30 =

8 SECTION (DOUBLE FIGURES 40+, +40)

4+40 =
40+1 =
51+40 =
40+6 =
40+7 =
40+2 =
40+3 =
58+40 =
40+4 =
40+9 =
3+40 =
40+50 =
53+40 =
40+52 =
40+8 =
40+53 =
55+40 =
40+51 =
40+54 =
57+40 =
40+58 =
5+40 =
9+40 =
50+40 =
40+57 =
40+55 =
6+40 =
7+40 =
8+40 =
52+40 =
40+59 =
1+40 =
40+56 =
54+40 =
2+40 =
56+40 =
40+5 =
59+40 =

9 SECTION (DOUBLE FIGURES 50+, +50)

50+26 =
21+50 =
50+2 =
22+50 =
50+27 =
15+50 =
30+50 =
50+24 =
17+50 =
23+50 =
50+13 =
50+18 =
50+30 =
24+50 =
50+3 =
50+12 =
50+29 =
50+4 =
50+5 =
50+31 =
50+6 =
50+8 =
50+10 =
16+50 =
50+11 =
50+14 =
50+37 =
50+16 =
50+7 =
46+50 =
50+9 =
2+50 =
50+28 =
50+23 =
10+50 =
50+32 =
3+50 =
47+50 =
48+50 =
50+17 =
50+19 =
50+20 =
1+50 =
50+21 =
50+22 =
50+1 =
50+25 =
28+50 =
50+15 =
29+50 =
50+33 =
50+34 =
33+50 =
37+50 =
8+50 =
50+43 =
38+50 =
14+50 =
39+50 =
50+35 =
34+50 =
49+50 =
50+36 =
50+42 =
12+50 =
50+44 =
50+46 =
50+38 =
4+50 =
50+40 =
50+47 =
50+45 =
50+39 =
5+50 =
36+50 =
50+48 =
50+49 =
9+50 =
44+50 =
11+50 =
41+50 =
26+50 =
6+50 =
13+50 =
19+50 =
50+41 =
20+50 =
45+50 =
7+50 =
25+50 =
43+50 =
18+50 =
27+50 =
31+50 =
32+50 =
35+50 =
40+50 =
42+50 =