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

30 + 10 =
35 + 10 = 		30 + 70 =
38 + 70 = 		10 + 30 =
16 + 30 = 		10 + 30 =
19 + 30 =
20 + 80 =
29 + 80 = 		10 + 20 =
17 + 20 = 		20 + 10 =
29 + 10 = 		60 + 40 =
69 + 40 =
40 + 50 =
44 + 50 = 		20 + 50 =
29 + 50 = 		10 + 20 =
17 + 20 = 		60 + 20 =
65 + 20 =




50 + 40 =
59 + 40 = 		40 + 20 =
44 + 20 = 		20 + 60 =
21 + 60 = 		80 + 20 =
88 + 20 =
20 + 80 =
24 + 80 = 		40 + 20 =
43 + 20 = 		20 + 80 =
22 + 80 = 		20 + 80 =
25 + 80 =
50 + 10 =
57 + 10 = 		10 + 70 =
13 + 70 = 		30 + 10 =
31 + 10 = 		80 + 20 =
82 + 20 =




40 - 20 =
44 - 20 = 		50 - 10 =
53 - 10 = 		40 - 20 =
48 - 20 = 		20 - 10 =
22 - 10 =
50 - 40 =
53 - 40 = 		20 - 10 =
21 - 10 = 		40 - 20 =
47 - 20 = 		30 - 30 =
31 - 30 =
80 - 20 =
83 - 20 = 		70 - 30 =
76 - 30 = 		50 - 40 =
59 - 40 = 		10 - 10 =
15 - 10 =




80 - 20 =
83 - 20 = 		90 - 10 =
97 - 10 = 		10 - 10 =
18 - 10 = 		10 - 10 =
17 - 10 =
50 - 30 =
53 - 30 = 		80 - 20 =
84 - 20 = 		60 - 20 =
67 - 20 = 		60 - 40 =
64 - 40 =
30 - 10 =
36 - 10 = 		40 - 10 =
49 - 10 = 		70 - 20 =
73 - 20 = 		50 - 30 =
51 - 30 =




40 - 10 =
44 - 10 = 		50 - 40 =
57 - 40 = 		70 - 30 =
75 - 30 = 		60 - 10 =
63 - 10 =
30 - 30 =
34 - 30 = 		50 - 30 =
59 - 30 = 		80 - 10 =
87 - 10 = 		60 - 30 =
67 - 30 =
50 - 10 =
52 - 10 = 		60 - 40 =
65 - 40 = 		20 - 10 =
23 - 10 = 		40 - 10 =
44 - 10 =




70 - 10 =
78 - 10 = 		40 - 10 =
44 - 10 = 		10 - 10 =
12 - 10 = 		20 - 10 =
22 - 10 =
20 - 10 =
22 - 10 = 		40 - 20 =
46 - 20 = 		70 - 20 =
77 - 20 = 		60 - 10 =
66 - 10 =
20 - 20 =
23 - 20 = 		60 - 30 =
67 - 30 = 		50 - 50 =
51 - 50 = 		50 - 40 =
52 - 40 =

Sommengenerator (72 aftrek sommen) De antwoorden

30 + 10 = 40
35 + 10 = 45		30 + 70 = 100
38 + 70 = 108		10 + 30 = 40
16 + 30 = 46		10 + 30 = 40
19 + 30 = 49
20 + 80 = 100
29 + 80 = 109		10 + 20 = 30
17 + 20 = 37		20 + 10 = 30
29 + 10 = 39		60 + 40 = 100
69 + 40 = 109
40 + 50 = 90
44 + 50 = 94		20 + 50 = 70
29 + 50 = 79		10 + 20 = 30
17 + 20 = 37		60 + 20 = 80
65 + 20 = 85




50 + 40 = 90
59 + 40 = 99		40 + 20 = 60
44 + 20 = 64		20 + 60 = 80
21 + 60 = 81		80 + 20 = 100
88 + 20 = 108
20 + 80 = 100
24 + 80 = 104		40 + 20 = 60
43 + 20 = 63		20 + 80 = 100
22 + 80 = 102		20 + 80 = 100
25 + 80 = 105
50 + 10 = 60
57 + 10 = 67		10 + 70 = 80
13 + 70 = 83		30 + 10 = 40
31 + 10 = 41		80 + 20 = 100
82 + 20 = 102




40 - 20 = 20
44 - 20 = 24		50 - 10 = 40
53 - 10 = 43		40 - 20 = 20
48 - 20 = 28		20 - 10 = 10
22 - 10 = 12
50 - 40 = 10
53 - 40 = 13		20 - 10 = 10
21 - 10 = 11		40 - 20 = 20
47 - 20 = 27		30 - 30 = 0
31 - 30 = 1
80 - 20 = 60
83 - 20 = 63		70 - 30 = 40
76 - 30 = 46		50 - 40 = 10
59 - 40 = 19		10 - 10 = 0
15 - 10 = 5




80 - 20 = 60
83 - 20 = 63		90 - 10 = 80
97 - 10 = 87		10 - 10 = 0
18 - 10 = 8		10 - 10 = 0
17 - 10 = 7
50 - 30 = 20
53 - 30 = 23		80 - 20 = 60
84 - 20 = 64		60 - 20 = 40
67 - 20 = 47		60 - 40 = 20
64 - 40 = 24
30 - 10 = 20
36 - 10 = 26		40 - 10 = 30
49 - 10 = 39		70 - 20 = 50
73 - 20 = 53		50 - 30 = 20
51 - 30 = 21




40 - 10 = 30
44 - 10 = 34		50 - 40 = 10
57 - 40 = 17		70 - 30 = 40
75 - 30 = 45		60 - 10 = 50
63 - 10 = 53
30 - 30 = 0
34 - 30 = 4		50 - 30 = 20
59 - 30 = 29		80 - 10 = 70
87 - 10 = 77		60 - 30 = 30
67 - 30 = 37
50 - 10 = 40
52 - 10 = 42		60 - 40 = 20
65 - 40 = 25		20 - 10 = 10
23 - 10 = 13		40 - 10 = 30
44 - 10 = 34




70 - 10 = 60
78 - 10 = 68		40 - 10 = 30
44 - 10 = 34		10 - 10 = 0
12 - 10 = 2		20 - 10 = 10
22 - 10 = 12
20 - 10 = 10
22 - 10 = 12		40 - 20 = 20
46 - 20 = 26		70 - 20 = 50
77 - 20 = 57		60 - 10 = 50
66 - 10 = 56
20 - 20 = 0
23 - 20 = 3		60 - 30 = 30
67 - 30 = 37		50 - 50 = 0
51 - 50 = 1		50 - 40 = 10
52 - 40 = 12