Question

estimate the following products using general rule .
a. 578*161
b. 5281*3491​

Answer 1

Answer:

1) 578*161

578 is rounded of to 600

161 is rounded of to 200

= 600*200

=6*100*2*100

=(6*2)* 10000

= 1,20,000

2) 5281*3491​

5281 is rounded of to 5000

  3491 is rounded of to 3000

= 5*1000*3*1000

= (5*3)*1000*1000

= 15*1000000

=1,50,00,000