MYE MATHS REVISION Part 3 (Sec1Express)

1) Write down the prime factors of 56.

• $2^2\times3\times5$

• $2^3\times7$

• $2^2\times3^2$

• $3^2\times7$

2) Find the greatest whole number that will divide both 45 and 63.

• 15

• 21

• 9

• 3

3) Consider the following numbers :

 $−2.85,\ \ 30,\ −27,\ 0,\ \ \ 3.\overline{34}\ ,\ \ \pi,\ \ \sqrt{2}$ 

write down the all the integers. 

•  $-2.85\ \ \ \ and\ \ \ \ 3.\overline{34}$  

•  $-27,\ \ 30,\ \ and\ \ \ 0$   

•  $\pi\ \ \ and\ \ \ \ \sqrt{2}$  

•  $-27\ \ \ \ and\ \ \ \ \ 30\ \$  

4) Solve  $4m=2m-54$  

•  $m=27$  

•  $m=-9$  

•  $m=-27$  

•  $m=9$  

5) Estimate the value of  $\frac{279.62}{1.00195}$ , correct to one decimal place. 

• 279.1

• 279.0

• 279.7

• 280.0

6) Given that 𝑥 = 5, 𝑦 = −6, 𝑧 = −4 , find the value of  $x\left(y+z^2\right)-x^2z$  .

• 50

• 100

• 150

• 200

7) Evaluate  $52−[4+(−7)]×5+23−4$  .

• 86

• 56

• 294

• 224

8) Expand and simplify  $5(2𝑥+1)−3(𝑥−1)−3𝑥$  .

•  $16x+8$  

•  $5x+8$  

•  $8x+2$  

•  $4x+8$  

9) Solve  $20𝑥−5(3+2𝑥)=40$  .

• 3.06

• 5.5

• 1.94

• 3.5

10) Solve  $\frac{3𝑦−8}{4}=\frac{4𝑦−7}{6}$  

•  $y=10$  

•  $y=22$  

•  $y=38$  

•  $y=-10$