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JSS2: MATHEMATICS  1ST TERM
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Properties of Whole Numbers I  Week 14 Topics1 Quiz

Properties of Whole Numbers II  Week 24 Topics1 Quiz

Properties of Whole Numbers III  Week 35 Topics1 Quiz

Indices  Week 42 Topics1 Quiz

Laws of Indices  Week 55 Topics1 Quiz

Whole Numbers & Decimal Numbers  Week 64 Topics1 Quiz

Standard Form  Week 73 Topics1 Quiz

Significant Figures (S.F)  Week 84 Topics1 Quiz

Fractions, Ratios, Proportions & Percentages I  Week 96 Topics1 Quiz

Fractions, Ratios, Proportions & Percentages II  Week 104 Topics1 Quiz

Fractions, Ratios, Proportions & Percentages III  Week 113 Topics1 Quiz

Approximation & Estimation  Week 121 Topic1 Quiz
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Lesson 2, Topic 1
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Square of numbers
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Square of numbers
The square of any number is the product of the number and itself
e.g. The square of 4 is the product of 4 and 4 i.e 4 x 4 = 16.
Therefore the square of 4 is 16.
The squares of numbers are given below:
Number:  Square: 
1  1^{2} = 1 x 1 = 1 
2  2^{2}Â = 2 x 2Â = 4 
3  3^{2}Â =Â 3 x 3 = 9 
4  4^{2}Â = 4 x 4 = 16 
5  5^{2} Â = 5 x 5Â = 25 
6  6^{2}Â =Â 6 x 6Â = 36 
7  7^{2Â } = 7 x 7 = 49 
8  8^{2}Â =Â 8 x 8 = 64 
9  9^{2} =Â 9 x 9Â = 81 
10  10^{2Â } =Â 10 x 10 = 100 
Perfect squares are gotten by multiplying a whole number by itself. e.g. 1, 4, 9, 16, 25, 36, 49, 64, 81 and 100 are perfect squares.
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