Oefen erbijsommen en erafsommen tot 1.000
In de mix
1.
320
120
jimmy
+
=
2.
140
360
jimmy
+
=
3.
280
180
jimmy
–
=
4.
580
340
jimmy
+
=
5.
300
20
jimmy
+
=
6.
400
480
jimmy
+
=
7.
600
420
jimmy
–
=
8.
320
300
jimmy
–
=
9.
580
260
jimmy
–
=
10.
200
260
jimmy
+
=
11.
580
500
jimmy
–
=
12.
640
340
jimmy
–
=
13.
960
500
jimmy
–
=
14.
220
100
jimmy
+
=
15.
380
200
jimmy
–
=
16.
180
140
jimmy
–
=
17.
500
240
jimmy
+
=
18.
120
280
jimmy
+
=
19.
160
760
jimmy
+
=
20.
200
800
jimmy
+
=
21.
760
620
jimmy
–
=
22.
360
160
jimmy
+
=
23.
860
280
jimmy
–
=
24.
880
540
jimmy
–
=
Oefen erbijsommen en erafsommen tot 1.000
| ANTWOORDEN
In de mix
1.
320
120
440
+
=
2.
140
360
500
+
=
3.
280
180
100
–
=
4.
580
340
920
+
=
5.
300
20
320
+
=
6.
400
480
880
+
=
7.
600
420
180
–
=
8.
320
300
20
–
=
9.
580
260
320
–
=
10.
200
260
460
+
=
11.
580
500
80
–
=
12.
640
340
300
–
=
13.
960
500
460
–
=
14.
220
100
320
+
=
15.
380
200
180
–
=
16.
180
140
40
–
=
17.
500
240
740
+
=
18.
120
280
400
+
=
19.
160
760
920
+
=
20.
200
800
1000
+
=
21.
760
620
140
–
=
22.
360
160
520
+
=
23.
860
280
580
–
=
24.
880
540
340
–
=