Question

Q1) What will be the unit digit of the squares of the following numbers? (i) 81 ii) -47 iii) -21 iv) 0.5 Q2) Find the squares of the following numbers and write their reciprocals. i)−24 17 ii) 6523 iii) −149 iv) −7−8 Q3) check, if the following numbers are perfect squares or not. i) 90 ii) 529 iii) 4096 iv) 9801

Answer 1

Answer:

1 is 0.5

2 is -24 17

3 is 4096

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