20.4211
110.8571
0.0387
0.0052
258.6667
20.4211
0.049
77.6 is about twice the value of 38. So d8 must go into 776 2 times, 20 times, 200 times, etc. Changing that 77.6 number back to 776 must add one decimal place to 2 times, and it becomes 20 times.The actual times is about 20.42, so the estimate was pretty close.
776.2842
812-36=776 776(divided by)2=388 388+36=424 There are 424 girls in the school....
20 can be divided by 20 and by 2. 20 divided by 20 equals 1, and 20 divided by 2 equals 10.
0.05