Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
647 – 8 =
639
2
|
2.
283 – 18 =
265
2
|
3.
54 – 29 =
25
2
|
4.
172 – 7 =
165
2
|
|
5.
121 + 117 =
2
238
|
6.
570 – 157 =
2
413
|
7.
907 + 81 =
988
2
|
8.
80 + 447 =
2
527
|
|
9.
987 – 429 =
558
2
|
10.
931 – 230 =
701
2
|
11.
629 + 145 =
2
774
|
12.
909 – 862 =
47
2
|
|
13.
134 – 79 =
55
2
|
14.
10 – 2 =
8
1
|
15.
191 – 86 =
105
2
|
16.
170 – 41 =
2
129
|
|
17.
287 + 194 =
2
481
|
18.
757 + 21 =
2
778
|
19.
130 – 124 =
6
1
|
20.
754 – 253 =
2
501
|