Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
30 + 247 =
3
277
2
4
|
2.
248 + 221 =
2
4
469
3
|
3.
41 + 125 =
4
3
166
2
|
4.
739 – 302 =
4
437
3
2
|
|
5.
342 + 508 =
2
4
850
3
|
6.
398 + 44 =
442
2
3
4
|
7.
684 – 636 =
3
48
2
4
|
8.
17 + 860 =
2
3
4
877
|
|
9.
858 + 16 =
3
4
874
2
|
10.
209 – 66 =
2
143
4
3
|
11.
700 – 259 =
3
2
441
4
|
12.
387 + 589 =
3
2
976
4
|
|
13.
44 + 810 =
3
2
4
854
|
14.
480 + 414 =
3
894
4
2
|
15.
89 + 751 =
3
2
840
4
|
16.
472 – 311 =
161
4
3
2
|
|
17.
896 + 89 =
985
4
3
2
|
18.
964 + 35 =
2
4
999
3
|
19.
78 + 228 =
4
306
2
3
|
20.
258 – 141 =
3
4
2
117
|