Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
476 – 347 =
4
2
3
129
|
2.
812 – 540 =
272
3
4
2
|
3.
857 + 10 =
867
4
3
2
|
4.
608 – 338 =
270
2
3
4
|
|
5.
582 – 3 =
2
3
4
579
|
6.
358 + 270 =
4
3
2
628
|
7.
991 – 157 =
2
3
4
834
|
8.
794 + 93 =
3
2
887
4
|
|
9.
869 + 85 =
2
3
4
954
|
10.
358 – 325 =
4
3
33
2
|
11.
307 + 40 =
2
347
3
4
|
12.
664 – 496 =
3
168
4
2
|
|
13.
673 – 106 =
3
567
2
4
|
14.
325 – 88 =
2
3
237
4
|
15.
181 – 104 =
77
3
2
4
|
16.
989 – 617 =
372
3
2
4
|
|
17.
650 + 161 =
4
811
3
2
|
18.
482 + 6 =
4
2
3
488
|
19.
270 + 330 =
2
4
600
3
|
20.
300 – 3 =
2
3
297
4
|