Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
714 + 34 =
2
4
748
3
|
2.
777 + 212 =
989
2
3
4
|
3.
977 – 448 =
3
2
529
4
|
4.
3 + 686 =
3
2
689
4
|
|
5.
86 + 764 =
4
3
2
850
|
6.
667 – 381 =
286
4
2
3
|
7.
752 + 221 =
973
4
2
3
|
8.
744 + 118 =
3
2
862
4
|
|
9.
1 – 0 =
3
4
2
1
|
10.
141 + 209 =
4
3
350
2
|
11.
444 – 6 =
3
2
438
4
|
12.
417 + 154 =
3
4
2
571
|
|
13.
366 – 220 =
4
3
146
2
|
14.
155 – 83 =
2
3
72
4
|
15.
448 + 107 =
555
2
3
4
|
16.
682 + 266 =
948
4
3
2
|
|
17.
320 – 201 =
4
2
119
3
|
18.
570 + 207 =
777
4
3
2
|
19.
443 + 202 =
645
2
4
3
|
20.
270 – 2 =
2
268
3
4
|