GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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48
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81
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60
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36
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Detailed explanation-1: -The square root of 60, estimated to two decimal places is 7.75. Example: The square root of some numbers (for example the number 44.89) is a rational number that terminates (6.7). Benchmark numbers can be used to state that the square root of 44.89 is between 7 and 8.
Detailed explanation-2: -The square root of 7 lies between the perfect squares closer to 7. Thus, √7 lies between 2 and 3.
Detailed explanation-3: -We can see that 64 is the only perfect square between 60 and 70.
Detailed explanation-4: -Method to Find Value of Root 8 To give you an idea, the square of 2 is 4 and the square of 3 is 9. So, the square root of 8 essentially lies between these two digits. But, since 3 square is 9, which is greater than 8, it most probably lies between 2.8 or 2.9. The actual answer for the square root of 8 is 2.82842712475.