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number patterns
Equations
100

Solve for y:

3y x 8 = 24

1

100

Solve:

9 x 2 x 3 

54

100

In:  24   Out:  20

In:  20   Out:  16

In:  16:  Out:  ?

12

100

What comes next in the pattern?

3,6,9,12,15,___

18

100

Solve for y:

98 + y = 129

31

200
Solve for y:

8 + y x 6 = 32

4


200

Solve:

(4 + 5) x 9

81

200

In:  3      Out:  12

In:  5      Out:  20

In:  7   :  Out:  ?

   28

200

What comes next in the pattern?


21, 20, 18, 15, 12, ___

7

(-1, -2, -3, -4, ....)

200

Solve:

12 plus 14 divided by 2 minus 9

10

300

Solve for y:

100/4 = y

25

300

Solve:

12 + 20/2

22

300

In:  19    Out:  13

In:  18    Out:  12

In:  17 :  Out:  ?

11

300

What comes next in the pattern?

30, 29, 31, 30, 32, 31, 33, ___

32

(minus 1, plus 2)

300

Solve for y:

y(9) = 54

6

400

Solve for y:

y - 8 = 31

39

400

Solve:

3 x [(2 + 3) x 4]  - 7

53

400

In:  2    Out:  5

In:  3    Out:  7

In:  4:  Out:  ?

9

(you should multiply by 2 and + 1)

400

What comes next in the pattern?

3,6,12,24,48,___

96

400

Solve for y:

y(5 + 10) = 45

y = 3

500

Solve for y:

7y + 2y = 18

2

500

Solve:

(8 x 2) - [2 + (6 - 4)]

12

500

In:  2    Out:  6

In:  3    Out:  11

In:  4:  Out:  ?

18

(you should multiply the number by itself and +2)

500

What comes next in the pattern?

4,9,19, 39, 79, ___

159

x2 + 1

500

Solve for y:

25(3) + 10/y = 80

y = 2