Question

5. Estimate each of the following by rounding off each number nearest to its greatest
place:
(i) 730 + 998
(ii) 5,290 + 17,986
(iii) 796 - 314
(iv) 28,292 – 21,496​

Answer 1

Answer:

$\bold\red{730+998=\:1728=2000}$

$\bold\red{5290+17986=23276=20000}$

$\bold\red{796-314=382=400}$

$\bold\red{28292–21496=6796=7000}$

Answer 2

$\huge\orange{\boxed{\green{\mathbb{\underbrace{\overbrace{\fcolorbox{blue}{navy}{\underline{\color{ivory}{Question}}}}}}}}}$

• Estimate each of the following by rounding off each number nearest to its greatest
• place:
• (i) 730 + 998
• (ii) 5,290 + 17,986
• (iii) 796 - 314
• (iv) 28,292 – 21,496​

${ \underline{ \underline{ \color{red}{ \large{ \textsf{ \textbf{Anѕwєr ➺}}}}}}}$

$\huge\mathfrak\red{(a) 730+998730+998}$

Rounding of to nearest hundred

$\huge\mathcal\blue{730⇒700\\}$ and ${\huge{\underline{\bf{\pink{998⇒1,000}}}}}$

$\green730+998 ⇒ 700+1,000$

$\red= 1,700$

$\blue(c) 796-314796−314$

Rounding of to nearest hundered

$\green796⇒800 and 314⇒300796-314\ \Rightarrow\ 800-300796−314 ⇒ 800−300= 500$

$\blue5290+17986 = 23276$ rounding of to nearest ten thousands $\green= 20000$

$\red28292-21496 =6796$ rounding of to nearest thousands $\blue=7000$