YEAR 7 SQUARES, CUBES AND THEIR ROOTS

YEAR 7 SQUARES, CUBES AND THEIR ROOTS

Multiple Choice

 $8^3=8\times3$   

• True

• False

Multiple Choice

 $-3^2=9$  

• True

• False

Multiple Select

Select all the expressions that are the same as $7^2$  

• 14

• 7 x 7

• 7 + 7

• 7 x 2

• 49

Multiple Choice

 $x^0+y^0+z^0=$  

• 1

•  $xyz^0$  

• 3

• can't be simplified

Multiple Select

Select all the expressions that are the same as  $4^{-3}$  

•  $-12$  

•  $-64$  

• 64

•  $\frac{1}{64}$  

•  $\frac{1}{4^3}$  

Multiple Choice

 $64^{\frac{1}{2}}=2^3$  

• True

• False

Multiple Choice

 $3^3=$  

• 3

• 6

• 9

• 27

Multiple Select

Which of the following is/are triangle numbers?

• 3

• 5

• 6

• 11

• 15

Multiple Choice

To find the terms of a triangle number sequence, which of the following is used?

• $\frac{1}{2}\left(n+1\right)$

• $\frac{1}{2}\left(n-1\right)$

• $\frac{1}{2}n\left(n+1\right)$

• $\frac{1}{2}n\left(n-1\right)$

Multiple Choice

The 3rd term of the triangle number sequence is (1 + 2 + 3) and the 4th term is (1 + 2 + 3 + 4). Find the 7th term of the triangle number sequence.

• 7

• 14

• 21

• 28

• 56

Multiple Choice

0, 1, 1, 2, 3, 5 and 8 are the first seven terms of the Fibonacci sequence. The next three two terms are ....

• 15 and 22

• 13 and 19

• 15 and 23

• 13 and 21

Fill in the Blank

In a triangle number sequence, the sum of any two consecutive terms gives a .......... number

Fill in the Blank

A prime number has exactly two .......

Fill in the Blank

The triangle number sequence is a perfect example of a ........ sequence

Multiple Select

Which of these is an example of an irrational number?

• $\tau$

• $\frac{22}{7}$

• $\sqrt{169}$

• $\sqrt{130}$

Fill in the Blank

A rational number is any number that can be written as a ............ with with integer parts

Multiple Select

Pythagoras' theorem is applicable to:

• right-angled scalene triangles

• right-angled isosceles triangles

• equilateral triangles

• all isosceles triangles

• all kinds of triangles

Poll

I can confidently

• identify squares, cubes and their roots

• list the first ten triangle numbers

• recognise rational and irrational numbers

• find the square root and cube root of numbers by factor method

• discuss the concepts of squares, cubes and their roots with my friend