Count by 2s
What is the missing number?
2, 4, 6, __, 10
8
What is the missing number?
5, 10, ___, 20, 25
15
What is the missing number?
10, 20, ___, 40, 50
30
100, 200, ___, 400, 500
300
What's missing? 25, 50, ____, 100
75
What is the missing number?
10, 12, ___, 16, 18
14
What is the missing number?
25, 30, 35, ___,45
40
What is the missing number?
80, 70, ___, 50, 40
60
400, 300, ____, 100
200
Count by 25's to 100
25, 50, 75, 100
What is the missing number?
44, 46, 48, ___, 52
50
What is the missing number?
25, 20, 15, ___, 5
10
What is the missing number?
710, ____, 730, ____, _____
720, 740, 750
700, 800, 900, ____
1000
What is missing? 125, ____, ____, 200
150, 175
What is the missing number?
60, 58, 56, ___,52
54
What is the missing number?
70, 65, ___, 55, 50
60
What is the missing number?
61, 71, 81, __, 101
91
233, 333, ___, 533
433
What comes next? 625, 650, ____, _____
675, 700
What is the missing number?
34, ___, 30, 28, 26
32
What is the missing number?
40,___,30, 25, 20
35
What is the missing number?
96, 86, 76, ___, 56
66
531, 431, 331, ___, 131
231
What comes next? 825, ____, _____, ____
850, 875, 900