Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
260 – 65 =
3
4
195
2
|
2.
728 + 171 =
4
3
899
2
|
3.
411 + 259 =
3
2
4
670
|
4.
408 – 109 =
2
299
3
4
|
|
5.
842 + 17 =
4
3
2
859
|
6.
880 – 509 =
3
4
2
371
|
7.
741 + 99 =
4
3
2
840
|
8.
51 + 598 =
4
2
3
649
|
|
9.
61 + 480 =
541
2
3
4
|
10.
321 + 203 =
524
4
3
2
|
11.
83 – 58 =
25
3
2
4
|
12.
987 – 115 =
872
3
2
4
|
|
13.
173 + 116 =
2
289
3
4
|
14.
159 – 105 =
4
54
2
3
|
15.
385 + 116 =
3
501
2
4
|
16.
777 + 42 =
819
3
2
4
|
|
17.
845 + 143 =
3
988
2
4
|
18.
992 + 2 =
3
2
4
994
|
19.
394 + 517 =
911
2
3
4
|
20.
121 + 814 =
3
935
2
4
|