Year 10 Numeracy Week (Friday)

How many triangles in total?

• 9

• 14

• 12

• 13

• 15

Jeremy bought a sandwich and a drink that cost him £7. His drink cost £1.75. What was the cost of Jeremy's sandwich?

Two angles in a triangle are  $23\degree$ and $57\degree$ what is the 3rd?

•  $90\degree$   

•  $100\degree$  
  

•  $98\degree$  
  

•  $101\degree$  
  

Round 578 to the nearest hundreds.

• 600
• 570
• 580
• 700

Estimate

 $\frac{5.4\ \times\ 8.9}{4.5}$  

• 9

• 8

• 10

• 11

Are -c and 4c like terms?

• Yes
• No

Simplify this expression

5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Expand and Simplify  $4\left(x+2\right)-3\left(x+1\right)$  

Expand and Simplify: (x + 3)(x² + 5x + 9)

• x³ + 15x² + 24x + 21

• 3x² + 15x + 27

• x³ + 8x² + 24x + 27

• x³ + 5x² + 27x + 9

Factorise 25a² – 50ab

• 25a (a – 2b)

• 5a (5a – 10b)

• 50a (2a – b)