Given that 63 to the 2nd power = 3,969, find the square of 630. Can someone help me with this problem so I can explain it to my 6th grader please???

Barbara C.
answered • 09/28/14

Nurturing and Experienced Tutor in Mathematics and English

63^{2} = 3,969

630^{2} = (63×10)^{2} = 63 × 10 × 63 × 10 = 63 ×63 × 10 × 10 ^{}

= 3,969 × 100

= 396,900

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Damazo T.

09/28/14