Sommengenerator (c)Paul van Ulft, Rotterdam Sommengenerator (72 optel- en aftrek sommen)

10 + 10 =
11 + 10 = 		40 + 60 =
42 + 60 = 		50 + 10 =
58 + 10 = 		60 + 10 =
64 + 10 =
10 + 70 =
11 + 70 = 		40 + 50 =
42 + 50 = 		40 + 60 =
48 + 60 = 		20 + 40 =
28 + 40 =
50 + 40 =
51 + 40 = 		10 + 30 =
12 + 30 = 		30 + 50 =
37 + 50 = 		70 + 20 =
76 + 20 =




20 + 80 =
24 + 80 = 		40 + 10 =
44 + 10 = 		50 + 50 =
54 + 50 = 		30 + 10 =
32 + 10 =
40 + 10 =
42 + 10 = 		30 + 60 =
37 + 60 = 		40 + 40 =
49 + 40 = 		90 + 10 =
91 + 10 =
30 + 40 =
35 + 40 = 		70 + 30 =
74 + 30 = 		10 + 20 =
18 + 20 = 		90 + 10 =
96 + 10 =




10 - 10 =
11 - 10 = 		50 - 10 =
57 - 10 = 		50 - 30 =
53 - 30 = 		40 - 30 =
47 - 30 =
50 - 20 =
52 - 20 = 		90 - 10 =
98 - 10 = 		40 - 10 =
48 - 10 = 		40 - 10 =
45 - 10 =
70 - 30 =
78 - 30 = 		50 - 40 =
59 - 40 = 		40 - 30 =
49 - 30 = 		70 - 10 =
71 - 10 =




50 - 40 =
58 - 40 = 		10 - 10 =
19 - 10 = 		50 - 50 =
54 - 50 = 		50 - 20 =
55 - 20 =
60 - 10 =
64 - 10 = 		60 - 10 =
69 - 10 = 		70 - 20 =
76 - 20 = 		80 - 10 =
88 - 10 =
50 - 40 =
55 - 40 = 		60 - 40 =
68 - 40 = 		90 - 10 =
94 - 10 = 		30 - 10 =
37 - 10 =




70 - 10 =
76 - 10 = 		70 - 10 =
73 - 10 = 		80 - 20 =
86 - 20 = 		70 - 20 =
76 - 20 =
40 - 30 =
41 - 30 = 		50 - 10 =
53 - 10 = 		60 - 10 =
67 - 10 = 		30 - 10 =
37 - 10 =
60 - 10 =
66 - 10 = 		70 - 20 =
77 - 20 = 		20 - 10 =
23 - 10 = 		70 - 20 =
72 - 20 =




60 - 10 =
66 - 10 = 		80 - 20 =
83 - 20 = 		30 - 20 =
39 - 20 = 		50 - 10 =
52 - 10 =
50 - 20 =
55 - 20 = 		40 - 10 =
46 - 10 = 		30 - 30 =
35 - 30 = 		50 - 40 =
54 - 40 =
50 - 20 =
59 - 20 = 		50 - 30 =
58 - 30 = 		40 - 30 =
49 - 30 = 		60 - 40 =
67 - 40 =

Sommengenerator (72 aftrek sommen) De antwoorden

10 + 10 = 20
11 + 10 = 21		40 + 60 = 100
42 + 60 = 102		50 + 10 = 60
58 + 10 = 68		60 + 10 = 70
64 + 10 = 74
10 + 70 = 80
11 + 70 = 81		40 + 50 = 90
42 + 50 = 92		40 + 60 = 100
48 + 60 = 108		20 + 40 = 60
28 + 40 = 68
50 + 40 = 90
51 + 40 = 91		10 + 30 = 40
12 + 30 = 42		30 + 50 = 80
37 + 50 = 87		70 + 20 = 90
76 + 20 = 96




20 + 80 = 100
24 + 80 = 104		40 + 10 = 50
44 + 10 = 54		50 + 50 = 100
54 + 50 = 104		30 + 10 = 40
32 + 10 = 42
40 + 10 = 50
42 + 10 = 52		30 + 60 = 90
37 + 60 = 97		40 + 40 = 80
49 + 40 = 89		90 + 10 = 100
91 + 10 = 101
30 + 40 = 70
35 + 40 = 75		70 + 30 = 100
74 + 30 = 104		10 + 20 = 30
18 + 20 = 38		90 + 10 = 100
96 + 10 = 106




10 - 10 = 0
11 - 10 = 1		50 - 10 = 40
57 - 10 = 47		50 - 30 = 20
53 - 30 = 23		40 - 30 = 10
47 - 30 = 17
50 - 20 = 30
52 - 20 = 32		90 - 10 = 80
98 - 10 = 88		40 - 10 = 30
48 - 10 = 38		40 - 10 = 30
45 - 10 = 35
70 - 30 = 40
78 - 30 = 48		50 - 40 = 10
59 - 40 = 19		40 - 30 = 10
49 - 30 = 19		70 - 10 = 60
71 - 10 = 61




50 - 40 = 10
58 - 40 = 18		10 - 10 = 0
19 - 10 = 9		50 - 50 = 0
54 - 50 = 4		50 - 20 = 30
55 - 20 = 35
60 - 10 = 50
64 - 10 = 54		60 - 10 = 50
69 - 10 = 59		70 - 20 = 50
76 - 20 = 56		80 - 10 = 70
88 - 10 = 78
50 - 40 = 10
55 - 40 = 15		60 - 40 = 20
68 - 40 = 28		90 - 10 = 80
94 - 10 = 84		30 - 10 = 20
37 - 10 = 27




70 - 10 = 60
76 - 10 = 66		70 - 10 = 60
73 - 10 = 63		80 - 20 = 60
86 - 20 = 66		70 - 20 = 50
76 - 20 = 56
40 - 30 = 10
41 - 30 = 11		50 - 10 = 40
53 - 10 = 43		60 - 10 = 50
67 - 10 = 57		30 - 10 = 20
37 - 10 = 27
60 - 10 = 50
66 - 10 = 56		70 - 20 = 50
77 - 20 = 57		20 - 10 = 10
23 - 10 = 13		70 - 20 = 50
72 - 20 = 52




60 - 10 = 50
66 - 10 = 56		80 - 20 = 60
83 - 20 = 63		30 - 20 = 10
39 - 20 = 19		50 - 10 = 40
52 - 10 = 42
50 - 20 = 30
55 - 20 = 35		40 - 10 = 30
46 - 10 = 36		30 - 30 = 0
35 - 30 = 5		50 - 40 = 10
54 - 40 = 14
50 - 20 = 30
59 - 20 = 39		50 - 30 = 20
58 - 30 = 28		40 - 30 = 10
49 - 30 = 19		60 - 40 = 20
67 - 40 = 27