Additionner des decimales
Soustraire des decimales
Additionner des fractions
Soustraire des fractions
Mystere
100

0,1 + 0,6

0,7

100

0,8 - 0,3

0,5

100

1/2 + 1/2

1 or 2/2

100

3/4 - 1/4

2/4 or 1/2

100

What is our next theme day?

Blue and Grey day for Diabetes Awareness

200

1,4 + 0,39

1,79

200

1,83 - 0,61

1,22

200

1/3 + 2/6

3/6 or 1/2

200

7/8 - 3/4

1/8

200

What is the next number in this series: 

2, 3, 5, 7, 11, 13, 17, 19, ____

23

300

1,28 + 0,96

2,24

300

3,18 - 1,72

1,46

300

5/8 + 1/4

14/16

300

7/12 - 1/2

1/12

300

How many toes does an elephant have in total?

20 toes

400

13,58 + 8,27

21,85

400

16,03 - 7,81

9,22

400

3/4 + 1/5

19/20

400

9/10 - 2/3

7/30

400

What is the shortest day of the year?

Winter Solstice (December 21/22)

500

19,043 + 7,784

26,827

500

39,24 - 21,86

17,38

500

1/7 + 3/4

25/28

500

15/18 - 1/4

21/36

500

How many classrooms are there at Caledonia?

21

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