Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
996 + 4 =
1000
2
|
2.
494 + 172 =
2
666
|
3.
771 + 214 =
985
2
|
4.
307 + 298 =
605
2
|
|
5.
65 + 266 =
331
2
|
6.
771 – 296 =
475
2
|
7.
471 + 2 =
2
473
|
8.
832 – 411 =
421
2
|
|
9.
70 – 24 =
2
46
|
10.
617 + 118 =
735
2
|
11.
754 – 145 =
2
609
|
12.
440 + 29 =
2
469
|
|
13.
78 + 457 =
535
2
|
14.
355 + 445 =
2
800
|
15.
48 – 45 =
3
1
|
16.
387 – 240 =
2
147
|
|
17.
10 + 286 =
2
296
|
18.
609 – 351 =
258
2
|
19.
154 – 61 =
2
93
|
20.
653 + 40 =
2
693
|