Download App

Exponents and Powers — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSExponents and Powers2 Marks
Question
Write $39,00,00,000$ in the standard form.
✓

Answer

For standard form $390000000 = 39 \times 10 \times 10 \times 10 \times 10 \times 10 \times 10 \times 10$
$= 39 \times 10^7$
$= 3.9 \times 10^7\times 10^1$
$= 3.9 \times 10^8$ [$\because$ $a^m\times a^n= (a)^{m+n}]$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Exponents and Powers→Exponents and Powers — all question types→MATHS STD 8 question papers→Gujarat Board STD 8 question papers→Gujarat Board question paper generator→

Similar questions

Factorise: $m^2-4 m n+4 n^2$
→
Build a square garden. Divide the square garden into four rectangular flower beds in such a way that each flower bed is as long as one side of the square. The perimeter of each flower bed is 40 m .
(i) Draw a diagram to represent the above information.
(ii) Mention the expression for perimeter of the entire garden.
→
$(79)^2-(69)^2$
→
Find the additive inverse of the following:$\frac{-3}{11}$
→
If the cost price of $12$ pens is equal to the selling price of $16$ pens, find the loss percent.
→
How much clay is dug out in digging a well measuring $3m$ by $2m$ by $5m?$
→
Find the square root of $4489$ by Division method.
→
Making use of the cube root table, find the cube root $0.27$
→
Find the square of the number $39$ without actual multiplication.
→
Factorise the following using the identity $a^2- b^2= (a + b)(a - b).$
$\text{x}^2-\frac{\text{y}^2}{100}$
→