When Maggie goes on birding watching trips, she sees at least 45 birds. She has taken 12 bird watching trips a year over the past 16 years. How many birds has Maggie seen?
Write the missing numbers:
12*16 = 192
192* 45 = 192 x (____ + ____)
= (192 X____)+(192 X ____)+(192X ___)
= ______ + _______ + ______
= _______
Without a calculator, you can break it up like the above:
45=40+5=20+20+5
so
192*45=192*20+192*20+192*5
=3840+3840+960
=?
To solve this problem, we can start by calculating the total number of bird watching trips Maggie has taken in the past 16 years.
We know that Maggie has taken 12 bird watching trips every year for 16 years, so we can multiply 12 by 16:
12 * 16 = 192
Now, let's calculate the total number of birds Maggie has seen. We are given that she sees at least 45 birds on each trip.
To find the total number of birds seen, we can multiply the total number of trips by the number of birds seen on each trip:
192 * 45 = 8640
Now, let's write the missing numbers in the expression:
192 x (____ + ____)
To find the missing numbers, we can divide the total number of birds seen by the number of bird watching trips Maggie has taken in a year:
8640 / 16 = 540
Now, let's substitute the missing numbers back into the expression:
192 x (540 + 540) = (192 x 540) + (192 x 540) + (192 x 540)
So, Maggie has seen a total of 8640 birds over the 16 years.