Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
43 + 542 =
4
585
3
2
|
2.
252 – 115 =
3
2
137
4
|
3.
420 + 134 =
554
4
3
2
|
4.
490 + 278 =
3
4
768
2
|
|
5.
145 + 651 =
4
796
2
3
|
6.
138 – 87 =
4
3
51
2
|
7.
128 + 100 =
4
228
3
2
|
8.
172 + 524 =
3
2
4
696
|
|
9.
104 – 17 =
2
4
87
3
|
10.
306 + 292 =
598
2
4
3
|
11.
474 – 137 =
2
4
3
337
|
12.
782 + 89 =
2
4
871
3
|
|
13.
618 – 358 =
260
2
3
4
|
14.
815 – 331 =
4
3
2
484
|
15.
736 + 64 =
2
800
4
3
|
16.
821 – 180 =
641
4
3
2
|
|
17.
670 + 222 =
3
4
892
2
|
18.
775 – 708 =
2
67
3
4
|
19.
975 + 21 =
3
996
4
2
|
20.
870 – 455 =
4
2
415
3
|