Oefen de erbijsommen tot 50

Erbijsommen

1.

30

+

5

=

40

25

45

35

2.

50

+

0

=

35

40

50

30

3.

0

+

40

=

35

30

40

25

4.

15

+

35

=

40

35

50

30

5.

35

+

5

=

30

20

35

40

6.

25

+

20

=

45

35

25

30

7.

20

+

25

=

35

25

30

45

8.

40

+

5

=

25

45

30

40

9.

10

+

10

=

10

15

20

25

10.

20

+

10

=

35

25

30

40

11.

35

+

0

=

25

30

35

45

12.

0

+

40

=

40

25

35

20

13.

10

+

30

=

40

35

30

25

14.

15

+

5

=

30

25

20

10

15.

0

+

45

=

30

45

40

25

16.

30

+

5

=

40

35

45

30

17.

45

+

0

=

35

30

25

45

18.

0

+

45

=

25

40

45

30

19.

15

+

30

=

40

30

25

45

20.

10

+

40

=

40

50

30

45

21.

0

+

45

=

35

30

45

25

Oefen de erbijsommen tot 50
| ANTWOORDEN

Erbijsommen

1.

30

+

5

=

40

25

45

35

2.

50

+

0

=

35

40

50

30

3.

0

+

40

=

35

30

40

25

4.

15

+

35

=

40

35

50

30

5.

35

+

5

=

30

20

35

40

6.

25

+

20

=

45

35

25

30

7.

20

+

25

=

35

25

30

45

8.

40

+

5

=

25

45

30

40

9.

10

+

10

=

10

15

20

25

10.

20

+

10

=

35

25

30

40

11.

35

+

0

=

25

30

35

45

12.

0

+

40

=

40

25

35

20

13.

10

+

30

=

40

35

30

25

14.

15

+

5

=

30

25

20

10

15.

0

+

45

=

30

45

40

25

16.

30

+

5

=

40

35

45

30

17.

45

+

0

=

35

30

25

45

18.

0

+

45

=

25

40

45

30

19.

15

+

30

=

40

30

25

45

20.

10

+

40

=

40

50

30

45

21.

0

+

45

=

35

30

45

25