Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
143 + 49 =
192
2
|
2.
849 + 99 =
2
948
|
3.
241 + 196 =
437
2
|
4.
367 – 120 =
247
2
|
|
5.
651 – 481 =
2
170
|
6.
432 – 349 =
83
2
|
7.
469 – 68 =
401
2
|
8.
450 + 333 =
2
783
|
|
9.
950 + 12 =
962
2
|
10.
665 – 217 =
448
2
|
11.
263 + 52 =
315
2
|
12.
474 – 147 =
327
2
|
|
13.
248 – 211 =
37
2
|
14.
552 – 445 =
2
107
|
15.
509 – 371 =
138
2
|
16.
324 – 100 =
224
2
|
|
17.
206 – 175 =
31
2
|
18.
155 + 288 =
2
443
|
19.
928 + 37 =
965
2
|
20.
778 – 50 =
728
2
|