Number Operations and Properties

Question 1

Multiple choice maths percentages finding one number as percentage of another money and metric measures as percentage expressing one quantity as a percentage of another

$1000$ is how many times of $10$

$200$
$100$
$300$
$400$

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Answer

$12:9::40:13$

Answer

$502000=$$\displaystyle 5\cdot 02\times 10^{5}$

Answer

$1.524\times 10^{7}$

Answer

$0.00000003$

Answer

$\displaystyle 8\cdot 6\times 10^{13}$

Question 2

Multiple choice maths direct proportion and inverse proportion rule of three types of proportions direct proportion

If $20: 28= x:7=10:y$.

The values of $x$ and $y$ in the box respectively are __________.

$5, 14$
$14, 5$
$8, 10$
$10, 8$

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Question 3

Multiple choice maths brackets order operations and algebra using brackets in algebraic expressions order of operations

The value of $100 - { ( 7 $of $8 + 4 ) \div 5 } $ is

$92$
$78$
$96$
$88$

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Question 4

Multiple choice properties of proportion ratio and proportions ratio and proportion maths

After applying invertendo to $31:15::18:19$ we get $15:a::b:18$
What is the value of $a+b$

$40$
$50$
$30$
$60$

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Question 5

Multiple choice properties of proportion ratio and proportions ratio and proportion maths

After applying invertendo to $30:50::80:20$ we get $50:a::b:80$
Find the value of $a-b$

$10$
$20$
$30$
$40$

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Question 6

Multiple choice properties of proportion ratio and proportions ratio and proportion maths

After applying invertendo to $9:12::13:40$ we get

$9:13::12:40$
$40:12::13:9$
$9:12::13:40$

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Question 7

Multiple choice maths numbers and place value many forms of ten thousand standard form of numbers number names, numerals and place values

Which of the following expressions is true?

$2940000=$$\displaystyle 2\cdot 94\times 10^{5}$
$3683000=$$\displaystyle 3\cdot 683\times 10^{5}$
$40404000=$$\displaystyle 4\cdot 0404\times 10^{5}$

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Question 8

Multiple choice maths numbers and place value many forms of ten thousand standard form of numbers number names, numerals and place values

When $70, 000$ is written as $7.0\times10^n$, what is the value of $n$?

$1$
$2$
$3$
$4$
$5$

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Question 9

Multiple choice maths numbers and place value many forms of ten thousand standard form of numbers number names, numerals and place values

The standard form of $15240000$ is __________.

$1.524\times 10^{6}$
$15.24\times 10^{7}$
$1.524\times 10^{8}$

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Question 10

Multiple choice maths numbers and place value many forms of ten thousand standard form of numbers number names, numerals and place values

The number $3\times10^{-8}$ can also be expressed as:

$0.000003$
$0.00003$
$0.0003$

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Question 11

Multiple choice maths numbers and place value many forms of ten thousand standard form of numbers number names, numerals and place values

The standard form of $8,60,00,00,00,00,000$ is

$\displaystyle 8\cdot 6\times 10^{-13}$
$\displaystyle 8\cdot 6\times 10^{12}$
$\displaystyle 8\cdot 6\times 10^{14}$

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Question 12

Multiple choice maths numbers and place value many forms of ten thousand standard form of numbers number names, numerals and place values

Find the value of $n$ such that $502000000=$$\displaystyle 5\cdot 02\times 10^{n}$.

$5$
$7$
$-8$
$8$

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Question 13

Multiple choice maths square and square root perfect square or square number squares and triangles powers and roots

$13^2 = 169$, Is it true for only $13$?

No
Yes
Incomplete
Not sur

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Question 14

Multiple choice maths square and square root perfect square or square number squares and triangles powers and roots

$(\cfrac{9 \times 12}{4\times 3})^2$ = ?

$80$
$76$
$91$
$81$

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Question 15

Multiple choice maths real number real numbers on number line fundamental theorem of arithmetic common factors and hcf

H.C.F. of $26$ and $91$ is:

$13$
$2366$
$91$
$182$

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Number Operations and Properties

Number Operations and Properties Questions