Estimation
Lessons(81)
First : estimate 35
35 contain two digit .cancel the ones and keep
the tens as it is , then 35 estimated to 30
E.X (1) Estimate the following :
62 Estimated to 60
+ 37 Estimated to + 30
99 90
588 Estimated to ..…
_ 137 Estimated to _ …..
……...
…..
55