Y8 NA1 (C/D Scheme)

The √21 is between which two integers?

• 5 and 6

• 20 and 22

• 4 and 5

• 10 and 11

The √40 is between which two integers?

• 39 and 41

• 6 and 7

• 5 and 6

• 19 and 21

• + 72
  

• - 72
  

• + 17
  

• - 1
  

5 - (-9) =

• -4
• -9
• 4
• 14

−4 × −6 =

• 24
• -24
• -10
• 2

Simplify:

5a+a+3

• 6a+3

• 9a

• 2a+8

• 8

Simplify:

2f-(-4f)+3

• 4+3f

• 5+4f

• -2f+3

• 6f+3

• 25

• -25

• 10

• -10

What is the perimeter of this shape?

• 11x + 7

• 14x + 7

• 14x + 12

• 11x + 12