Question

Estimate each of the following products using general rule:

(a) 578 * 161 (b) 1291 * 592​

Answer 1

Step-by-step explanation:

(a) 578\times161

Rounding off by general rule,

578 rounds off to 600

161 rounds off to 200,

Required product =  600\times200

= 120000

b) 1291\times592

Rounding off by general rule,

1291 rounds off to 1300

592 rounds off to 600

Required product = 1300\times600

= 780000