Whole Numbers

Write a number 100 less than one hundred thousand

• 99 990

• 99 909

• 99 900

• 99 099

Estimate 201 multiplied by 397

• 8 000

• 80 000

• 800 000

• 8 000 000

 $18\div2+4\times3=$  

• 1

• 9

• 21

• 39

 $2^{5\ }=$  

•  $2\times5$  

•  $5\times5$  

•  $2\times2\times2\times2\times2$  

•  $2+2+2+2+2$  

The number "eight hundred and eighty thousand and eight" may be written as...

• 800 808

• 808 008

• 880 008

• 8 800 008

What is equivalent to

 $85\times16+16\times15$  

•  $32\times100$  

•  $16\times101$  

•  $101\times15$  

•  $100\times16$  

 $2\times3\times0\times4+5=$  

• 0

• 5

• 9

• 29

The square root of

 $6^2$  is...

• 3

• 4

• 5

• 6

Which of these numbers is prime?

• 51

• 53

• 55

• 57

Which is equal to

 $2^3\times2^{10}$  ?

•  $2^{30}$  

•  $2^{13}$  

•  $4^{30}$  

•  $4^{13}$