What's wrong?
Adding
Subtracting
Rule
Surprise
100

Fix this pattern: 1, 3, 5, 6, 9

1, 3, 5, 7, 9

100

2, 4, 6, 8 ___ ___ ___

2, 4, 6, 8, 10, 12 14

100

10, 8, 6, __, __,

10. 8, 6, 4, 2

100

What is the rule for the following pattern? 10, 20, 30, 40, 50

Add 10

100

Write this number in expanded form: 147

100+ 40+ 7

200

fix this pattern: 2, 4, 6, 8, 12

2, 4, 6, 8, 10

200

5, 8, 11, __, __, 20

5, 8, 11, 14, 17, 20

200

38, 34, 30, ___,  ___, ____

38, 34, 30, 26, 22, 18

200

What is the rule for the following pattern: 12, 16, 20, 24, 28

Add 4

200

Solve: 3+ 5+ 2

10

300

fix this pattern: 7, 6, 5, 3, 2, 1

7, 6, 5, 4, 3, 2, 1

300

25, 34, 42, ____, ____, ____

25, 34, 42, 51, 60, 69

300

95, 90, 85, __, ___, ___

95, 90, 85, 80, 75, 70

300

What is the rule for the following pattern: 43, 38, 33, 28, 23

Subtract 5

300

How many 100s are in this number 438

4 hundreds

400

fix this pattern: 50, 45, 40, 30, 25

50, 45, 40, 35, 30, 25

400

41, 49, 57, ___, ____, ____

41, 49, 57, 65, 73, 81

400

67, 61, 55, ___, ___, ___

67, 61, 55, 49, 43, 37

400

What is the rule for the following pattern: 19, 28, 37, 46, 55

Add 9

400

Solve: 47-28

19

500

fix this pattern: 48, 47, 46, 45, 34, 43, 42

48, 47, 46, 45, 44, 43, 42

500

81, 83, 85, __, __, __

81, 83, 85, 87, 89, 91

500

51, 40, 29, ___, ____

51, 40, 29, 18, 7

500

What is the rule for the following pattern: 45, 30, 15, 0

Subtract 15

500

what is an even number?

a number ending in 0, 2, 4, 6, 8

M
e
n
u