Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
446 + 48 =
494
2
|
2.
883 + 11 =
2
894
|
3.
151 + 249 =
400
2
|
4.
80 + 692 =
772
2
|
|
5.
715 – 681 =
34
2
|
6.
850 – 151 =
699
2
|
7.
813 + 147 =
2
960
|
8.
747 + 109 =
856
2
|
|
9.
105 + 463 =
2
568
|
10.
556 – 25 =
531
2
|
11.
428 + 174 =
602
2
|
12.
637 + 230 =
2
867
|
|
13.
392 – 276 =
2
116
|
14.
90 – 65 =
25
2
|
15.
297 – 6 =
291
2
|
16.
793 + 96 =
889
2
|
|
17.
195 + 219 =
414
2
|
18.
54 + 331 =
2
385
|
19.
560 – 84 =
2
476
|
20.
474 – 259 =
215
2
|