Show:
What Number is Missing?
What Number is This?
greater than
Adding and subtracting
100

What number is missing?  25, 30,__, 40

35

100

What is this number? 

9

Nine

100

35 and 42

42

100

18+3

21

200

What number is missing?  10, 11, 12, 13, __, 15

14

200

What is this number? 

16

Sixteen

200

17 and 7

17
200

6+22

28

300

What number is missing?  12, __, 32, 42

22

300

What is this number? 

25

Twenty-five

300

93 and 39

93

300

8-5

3

400

What number is missing?  5, 10, 15, __, 25, 30

20

400

What is this number? 

53

Fifty-three

400

64 and 73

73

400

22-9

12

500

What number is missing?  

10, 20, ___, 40, 50

30

500

What is this number? 

100

One-hundred

100+0

500

19 and 20

20

500

15+3

18