x2
x3
x5
x10
x Random
Challenge Questions
100

2 x 3

What is 6

100

3 x 4

What is 12

100

5 x 3

What is 15

100

10 x 3

What is 30

100

12 x 2

What is 24

200

2 x 4

What is 8

200

3 x 6

What is 18

200

5 x 5

What is 25

200

10 x 7

What is 70

200

12 x 3

What is 36

300

2 x 8

What is 16

300

3 x 7

What is 21

300

5 x 7

What is 35

300

10 x 9

What is 90

300

12 x 6

What is 72

400

2 x 11

What is 22

400

3 x 9

What is 27

400

5 x 11

What is 55

400

10 x 11

What is 110

400

12 x 10

What is 120

500

2 x 15

What is 30

500

3 x 12

What is 36

500

5 x 12

What is 60

500

10 x 15

What is 150

500

12 x 12

What is 144

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