Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
921 – 187 =
734
2
|
2.
816 – 676 =
140
2
|
3.
779 – 760 =
19
2
|
4.
109 – 88 =
2
21
|
|
5.
999 – 796 =
203
2
|
6.
640 + 197 =
837
2
|
7.
844 – 58 =
786
2
|
8.
680 – 21 =
2
659
|
|
9.
215 + 473 =
688
2
|
10.
436 + 257 =
693
2
|
11.
914 + 50 =
964
2
|
12.
483 + 97 =
580
2
|
|
13.
664 + 312 =
2
976
|
14.
752 + 128 =
2
880
|
15.
639 – 134 =
2
505
|
16.
897 – 852 =
2
45
|
|
17.
840 + 70 =
2
910
|
18.
121 – 73 =
2
48
|
19.
526 – 305 =
221
2
|
20.
74 – 36 =
38
2
|