Addition
Subtraction
Multiplication
Patterns
Random
100

2 + 7

9

100

10 - 3

7

100

100 x 0

0

100

What's the missing number? 11, 12, ___, 14, 15

13

100

15 + 30

45

200

14 + 6

20

200

19 - 11

8

200

3 x 5

15

200

What's the missing number?  10, 20, 30, ___, 50

40

200

20 - 8

12

300

30 + 44

74

300

60-45

15

300

4 x 3

12
300

What's the missing number?  5, 10, 15, ___, 25, 30

20

300

What's the missing number?   19, 17, 15, ___, 11, 9

13

400

60 + 88

148

400

74 - 13

61

400

7 x 6

42

400

What's the missing number?  3, 5, 7, ___, 11, 13, 15

9

400

6 x 4

24

500

235 + 465

700

500

984 - 340

644

500

8 x 7

56

500

What's the missing number?   1, 5, 9, 13, ___, 21

17

500

10 x 10

100