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Questions Responses

1

2

3

4

5

100

2x5-10

0

100

3x5+15

30

100

5x5-5

20

100

6x5-15

15

100

3x8-4

20

200

9x5+45

90

200

3x6+18

³⁶

200

5x9+40

95

200

4x7-7

21

200

5x3+57

15+57=72

300

7x4+12

28+12=40

300

4x5-5

15

300

4x6-6

18

300

4x9-30

6

300

4X5+35

20+35=55

400

5x8-9

40-9=31

400

3x3-9

0

400

8x5+40

⁸⁰

400

7x10-57

70-57=13

400

5x8-2

38

500

6x9-38

54-38=16

500

4x9+17

36+17=53

500

5x6+30

60

500

6x9-38

54-38=16

500

5x7-16

35-16=19