Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
509 + 155 =
3
2
4
664
|
2.
967 + 18 =
2
985
4
3
|
3.
639 – 28 =
4
611
3
2
|
4.
714 – 123 =
2
4
3
591
|
|
5.
162 – 98 =
4
2
64
3
|
6.
923 + 4 =
2
3
927
4
|
7.
60 + 928 =
3
988
4
2
|
8.
388 + 100 =
3
2
4
488
|
|
9.
583 – 268 =
315
2
4
3
|
10.
87 + 311 =
2
3
4
398
|
11.
911 – 749 =
4
162
3
2
|
12.
997 – 550 =
447
2
3
4
|
|
13.
57 – 35 =
2
22
4
3
|
14.
581 + 279 =
2
860
3
4
|
15.
770 – 253 =
3
517
4
2
|
16.
350 – 144 =
206
2
3
4
|
|
17.
800 + 73 =
3
873
4
2
|
18.
700 + 68 =
4
2
3
768
|
19.
283 – 126 =
157
2
3
4
|
20.
999 – 511 =
3
4
488
2
|