Computation - Quick Review Test 1

If 1400 out of 5600 persons did NOT vote in an election, the percentage which voted was

• 25

• 44

• 56

• 75

 $5\%$  of 200 =

• 2

• 10

• 40

• 100

If  $m\Delta n=\sqrt{mn-n^2}$ , then  $5\Delta3=$  

•  $\sqrt{6}$  

•  $3$  

•  $\sqrt{15}$  

•  $6$  

 $5\frac{2}{5}+4\frac{3}{7}=$  

•  $9\ \frac{5}{35}$  

•  $9\ \frac{6}{35}$  

•  $9\ \frac{5}{12}$  

•  $9\ \frac{29}{35}$  

If  $75=5+\left(10\times N\right)$ ,  then  $N=$  

• 7

• 10

• 15

• 70

 $0.625$  written as a common fraction is

•  $\frac{3}{5}$ 
  

•  $\frac{5}{8}$  

•  $\frac{11}{16}$  

Which of the following is a prime number?

• 31

• 33

• 35

• 39

The value of 2 in the number 425.3 is

• 2 tenths

• 2 ones

• 2 tens

• 2 hundreds

The number 3.14063 correct to 3 decimal places is

• 3.140

• 3.141

• 3.146

• 3.150

Which of the following is the same as $57\times999$ ?

•  $57\times100-1$  

•  $57\left(100-1\right)$  

•  $57\times1000-1$  

•  $57\left(1000-1\right)$