Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
636 – 555 =
2
81
|
2.
784 + 162 =
2
946
|
3.
956 – 54 =
2
902
|
4.
454 – 139 =
2
315
|
|
5.
774 – 589 =
2
185
|
6.
444 + 299 =
2
743
|
7.
408 + 272 =
2
680
|
8.
19 – 5 =
14
1
|
|
9.
149 – 44 =
2
105
|
10.
12 + 967 =
2
979
|
11.
969 + 12 =
2
981
|
12.
575 – 379 =
2
196
|
|
13.
978 – 377 =
2
601
|
14.
462 + 274 =
2
736
|
15.
378 – 304 =
2
74
|
16.
761 – 357 =
2
404
|
|
17.
997 + 0 =
2
997
|
18.
755 + 127 =
882
2
|
19.
204 – 46 =
2
158
|
20.
991 + 1 =
2
992
|