Number Concepts and Whole Number Operations Mock Exam #1

1210000 represents

• One hundred and twenty-one thousand

• Twelve thousand one hundred

• One million, two hundred and ten thousand

• Twelve million, one hundred thousand

 $\frac{1}{4}\ of\ a\ million\ is\$  

• 250

• 2500

• 250000

• 25000

 $10^{n\ }=\ 1000.\ What\ is\ the\ value\ of\ n?$  

• 4

• 2

• 3

• 1

In expanded notation 13 899 can be written as:

• (1 x 10⁴) + ( 3 x 10³) + ( 8 x 10²) + (9 x 10¹) + (9 x 10⁰)

• (1 x 10⁵) + ( 3 x 10⁴) + ( 8 x 10³) + (9 x 10²) + (9 x 10¹)

• (1 x 10⁵) + ( 3 x 10⁴) + ( 8 x 10³) + (9 x 10²) + (9 x 10)

• (1 x 10¹) + ( 3 x 10²) + ( 8 x 10³) + (9 x 10⁴) + (9 x 10⁵)

The average of three numbers represented by the letters a, b and c is

• 3 a +b + c

• (a + b + c) x 3

• $\frac{a+b+c}{3}$

• $\frac{a\times b\times c}{3}$

If ( a * b) means (a x b) - (a +b) find 6*9

• 39

• 69

• 54

• 30

700 + 50 000 + _______ +30 +8 = 59 738. The missing number is

• 900

• 9

• 9000

• 90

58 x 27 is the same as

• 58 x 20 x 7

• (50 x 8) + (20 x 7)

• (58 + 20) + (58 +7)

• (58 x 20) + (58 x 7)

 $1308\ \div\ 12\ =$  

• 19

• 109

• 1009

• 15696

The sum of three whole numbers is 84. The first number is 60. the second and third number are the same. What is the second number?

• 14

• 48

• 12

• 24