Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
120 – 49 =
4
71
3
2
|
2.
989 + 9 =
2
3
4
998
|
3.
792 + 109 =
3
901
2
4
|
4.
511 – 427 =
3
2
4
84
|
|
5.
20 – 19 =
4
3
1
2
|
6.
419 – 270 =
149
4
3
2
|
7.
109 – 15 =
94
2
3
4
|
8.
616 + 360 =
4
2
3
976
|
|
9.
113 + 697 =
2
4
810
3
|
10.
809 – 558 =
4
2
3
251
|
11.
140 + 125 =
2
4
3
265
|
12.
49 – 46 =
1
2
3
4
|
|
13.
684 – 512 =
4
3
172
2
|
14.
519 + 118 =
637
4
2
3
|
15.
33 + 358 =
4
3
2
391
|
16.
997 – 677 =
3
4
320
2
|
|
17.
500 + 196 =
3
2
4
696
|
18.
365 – 249 =
4
3
2
116
|
19.
577 – 576 =
1
3
2
4
|
20.
191 – 149 =
2
4
42
3
|