Tag: maths

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Questions Related to maths

Multiple choice maths 5-digit numbers expanded form introduction to numbers and number systems numbers in general form

Numeral for sixty million and sixty six is

  1. $60,000,060$
  2. $60,000,066$
  3. $6,000,066$

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In international numbering system
The 1st period consists of - ones, tens and hundred.
The 2nd period consists of - thousand, $10$ thousand and $100 $ thousands.
The 3rd period consists of - million, $10$ million and $100$ million.
$\therefore $  Numeral for sixty million and sixty six $=60,000,066$
Option B is correct.

Multiple choice maths 5-digit numbers expanded form introduction to numbers and number systems numbers in general form

Product of $3,535$ and $78$ is

  1. $2,76,730$
  2. $27,573$
  3. $2,75,730$
  4. $2,77,530$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

$\Rightarrow$  $3535\times 78$

$\Rightarrow$  $(3000+500+30+5)\times (70+8)$
$\Rightarrow$  $70(3000+500+30+5)+8(3000+500+30+5)$
$\Rightarrow$  $(210000+35000+2100+350)+(24000+4000+240+40)$
$\Rightarrow$  $247450+28280$
$\Rightarrow$  $275730$
$\therefore$   $3,535\times 78=2,75,730$

Multiple choice maths 5-digit numbers expanded form introduction to numbers and number systems numbers in general form

Round off to nearest hundreds: The given number is $1,78,762$

  1. $1,78,760$
  2. $1,78,700$
  3. $1,78,800$
  4. $17,800$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Given number is $1,78,762$ 
First we see $10's$ place place value which is $62$ and it is more than $50$.
Now we will round up means to round off $762$ it will become $800$
So the correct answer is $1,78,800$.