Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
163 – 43 =
120
2
|
2.
994 – 357 =
2
637
|
3.
6 – 1 =
1
5
|
4.
915 + 4 =
919
2
|
|
5.
150 – 131 =
19
2
|
6.
119 – 42 =
77
2
|
7.
226 – 223 =
1
3
|
8.
734 – 658 =
76
2
|
|
9.
86 – 57 =
2
29
|
10.
561 + 156 =
2
717
|
11.
344 + 441 =
785
2
|
12.
383 – 61 =
322
2
|
|
13.
725 – 708 =
2
17
|
14.
501 – 285 =
216
2
|
15.
785 + 31 =
2
816
|
16.
808 – 255 =
2
553
|
|
17.
314 – 191 =
123
2
|
18.
99 + 119 =
218
2
|
19.
641 + 162 =
2
803
|
20.
919 – 41 =
2
878
|