Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
598 – 427 =
3
4
171
2
|
2.
5 – 1 =
3
2
4
1
|
3.
433 + 377 =
3
2
4
810
|
4.
719 – 655 =
3
4
2
64
|
|
5.
770 – 631 =
4
139
2
3
|
6.
899 – 512 =
4
2
3
387
|
7.
409 + 210 =
3
2
4
619
|
8.
340 + 209 =
4
549
2
3
|
|
9.
447 + 337 =
2
3
4
784
|
10.
999 – 515 =
2
484
3
4
|
11.
1 – 1 =
0
4
2
3
|
12.
772 – 62 =
2
3
4
710
|
|
13.
584 – 184 =
2
400
4
3
|
14.
943 – 913 =
3
2
4
30
|
15.
739 + 4 =
4
2
743
3
|
16.
840 – 601 =
4
239
3
2
|
|
17.
975 – 31 =
4
3
2
944
|
18.
896 + 4 =
4
900
2
3
|
19.
97 – 93 =
1
4
3
2
|
20.
842 + 136 =
2
3
4
978
|