Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
904 + 23 =
2
927
|
2.
905 + 27 =
932
2
|
3.
843 – 842 =
2
1
|
4.
147 – 107 =
40
2
|
|
5.
331 + 340 =
671
2
|
6.
228 – 93 =
135
2
|
7.
843 + 81 =
2
924
|
8.
580 + 52 =
632
2
|
|
9.
617 + 101 =
718
2
|
10.
500 + 9 =
2
509
|
11.
956 + 21 =
977
2
|
12.
520 + 44 =
2
564
|
|
13.
840 + 50 =
890
2
|
14.
609 – 603 =
1
6
|
15.
298 – 289 =
9
1
|
16.
10 – 2 =
1
8
|
|
17.
306 – 14 =
2
292
|
18.
192 + 191 =
383
2
|
19.
917 + 14 =
931
2
|
20.
842 – 62 =
2
780
|