Question 1

Complete this addition series: 
56, 62, 68, 74, [ ? ], [ ? ]

Accepted Answer

80, 86

Answer

81, 84

Answer

80, 85

Answer

81, 86

Question 2

Complete this addition series: 
12, 21, [ ? ], [ ? ], 48, 57

Accepted Answer

30, 39

Answer

30, 40

Answer

31, 39

Answer

31, 40

Question 3

Complete this subtraction series: 
97, 85, 73, 61, [ ? ], [ ? ]

Accepted Answer

49, 37

Answer

49, 38

Answer

50, 37

Answer

50, 38

Question 4

Complete this subtraction series: 
87, 71, [ ? ], [ ? ], 23, 7

Accepted Answer

55, 39

Answer

55, 40

Answer

56, 39

Answer

56, 38

Question 5

Complete this subtraction series: 
66, 58, 50, [ ? ], [ ? ], 26

Accepted Answer

42, 34

Answer

43, 33

Answer

43, 34

Answer

42, 33

Question 6

Complete this multiplication series: 
9, 18, 36, 72, [ ? ], [ ? ]

Accepted Answer

144, 288

Answer

144, 289

Answer

146, 289

Answer

146, 288

Question 7

Complete this multiplication series: 
4, 16, [ ? ], 1024, [ ? ], 16384

Accepted Answer

64, 4096

Answer

48, 4096

Answer

48, 4100

Answer

64, 4100

Question 8

Complete this division series: 
34375, 6875, 1375, [ ? ], [ ? ], 11

Accepted Answer

275, 55

Answer

275, 54

Answer

275, 45

Answer

276, 55

Question 9

Complete this division series: 
100842, 14406, [ ? ], 294, 42, [ ? ]

Accepted Answer

2058, 6

Answer

2068, 6

Answer

2068, 7

Answer

2058, 7

Question 10

Complete this division series: 
1113879, 85683, 6591, 507, [ ? ], [ ? ]

Accepted Answer

39, 3

Answer

38, 2

Answer

39, 2

Answer

38, 3

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