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100

a watermelon is cut into 8 slices. Aaron eats 5 slices, how much of the watermelon is left?

3/8

100

63 / 9 = ?

7

100

1 x 1 = ?

1

100

2 + 2 = ?

4

100

2 - 1 = ?

1

200

1/2 x 3

3/2

200

108 / 9 = ? 

12

200

3 x 6 = ?

18

200

10 + 3 = ?

13

200

5 - 2 = ?

3

300

5/3 - 1/3 = ?

4/3

300

78 / 3 = ?

26

300

11 x 3 = ?

33

300

100 + 60 = ?

160

300

10 - 8 = ?

2

400

7/4 = 1 3/4 = ?

1.75
400
678 / 2 = ?

339

400

12 x 8 = ? 

96 

400

291 + 132 = ?

423

400

100 - 30 = ?

70

500

9/4 = 2 1/4 = ?

2.25

500

1068 / 4 = ?

267

500

13 x 67 = ?

871

500

3986 + 6897 = ?

10883

500

2735 - 200 = ?

2535