There are 14 days in 2 weeks. about how many 2- week periods are there in 1326 days? how do you estimate this answer

Estimate will not use a calculator, in general.

Think like this.

14 days in a two-week period.

1400 days in 100 two-week periods.

But 1400 days is more than 1326 days by about 70 days, or 5 periods too many.

So the estimate is 100-5=95 periods.

square root of 36/6 = 2.449489743

square root of 16/6 = 1.632993162

square root of 6 = 2.449489743

the answer is square root of 16/6 because the square root of 36/6 is the same answer as square root of 6 = 2.449489743