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# Opposite Corners coursework

Extracts from this document...

Introduction

Opposite Corners coursework

Consider this 10 x 10

Middle

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

Highlight any 2x2 square within this grid.

Multiply the numbers in opposite corners.

Take the

Conclusion

Example

(54 x 45) - (44 x 55) = 2430 - 2420 = 10

Now try some other 2 x 2 squares within the grid

INVESTIGATE

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