Question

Slove using bracket 7×109

Answer 1

Hi joydeep ,

Stay happy !! ☺

$\huge\red{\boxed{Question}}$

$7 \times 109$

$\huge\red{\boxed{Answer}}$

$109 \: can \: be \: written \: as : 100 + 9$

$7 \times (100 + 9)$

$(7 \times 100) + (7 \times 9)$

$700 + 63$

$763$

$\large{ \boxed{7×109=763}}$

$Hope \: \: this \: \: helps \: \: you \: !$

Answer 2

$\huge\boxed{7 × 69}$

$\LARGE{ \underline{\underline{\sf{ANSWER:}}}}$

➪Before solving this question we should write 109 as "100+9"

➪7×(100+9)

➪(7×100) + (7×9)

➪700 + 69

➪769

$\small{ \underline{\underline{\sf{Extra\: points:}}}}$

The use of brackets allows us to follow a certain procedure to expand the numbers systematically.

$\tt\pink{Example}$

8×107

➪8×(100+7)

➪(8×100) + (8×7)

➪800 + 56

➪856