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100

What's the Rule?

1, 2, 3, 4, 5

Start at 1 and add 1 each time.


100

What's the rule?

10, 9, 8, 7, 6

Start at 10 and subtract 1 each time.

100

Add 3 each time.

4, 7, __, __

10, 13

100

Fill in the next 2 numbers

5, 10, 15, ___, ___

20, 25

200

What's the rule?

2, 4, 6, 8 ,10

Start at 2 and add 2 each time.


200

What's the rule?

40, 35, 30, 25, 20

Start at 40 and subtract 5 each time.

200

Subtract 2 each time.

10, 8, __, __

6, 4

200

Fill in the next two numbers.

2, 4, 6, __, __

8, 10

300

What's the rule?

5, 10, 15 ,20, 25

Start at 5 and add 5 each time.

300
What's the rule?

9, 6, 3, 0

Start at 9 and subtract 3 each time.

300

Add 5 each time.

10, 15, __, __

20, 25

300

Fill in the next two numbers:

10, 20, 30, __, __

40, 50

400

What's the rule?

4, 8, 12, 16

Start at 4 and add 4 each time.

400

What's the rule?

14, 10, 6, 2

Start at 14 and subtract 4 each time.
400

Subtract 10 each time.

50, 40, __, __

30, 20

400

Fill in the next two numbers.

50, 55, 60, 65, __, __

70, 75

500

What's the rule?

7, 14, 21, 28

Start at 7 and add 7 each time.

500

What's the rule?

90, 81, 72, 63

Start at 90 and subtract 9 each time.

500

Add 6 each time.

10, 16, __, __

22, 28

500

Fill in the next two numbers.

100, 110, 120, 130, ___, ___

140, 150