Question

Estimate the following product using general rule: $9250$$\times$$29$.Make four more such examples.

Answer 1

Step-1: Estimate the given product:

Given product is $9250$$\times$$29$

Rounding off using general rule, we get,

$9250$$\Rightarrow$$9000$ and $29$$\Rightarrow$$30$

$\therefore$ Estimated value $=$$9000$$\times$$30$$=$$2,70,000$

Step- 2: Examples:

(i) $391\times 561\Rightarrow 400\times 600=2,40,000$

(ii) $1125\times 2307\Rightarrow 1100\times 2300=25,30,000$

(iii) $54\times 3019\Rightarrow 50\times 3000=1,50,000$

(iv) $3858\times 7682\Rightarrow 4000\times 8000=3,20,00,000$

Hence the estimated value is $2,70,000$ and the required examples were given