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powers of 10

100

1.2 x 10 =

12

200

4 x 10² =

4 x 100 

= 400

300

7.8 x 10³

7.8 x 1000

= 7800

400

10⁵ =

10 x 10 x 10 x 10 x 10

100,000

500

10^-2 =

0.01

calculations with negatives

100

(10) + (-3) =

7

200

(5) - (-6) =

11

300

(-7) x (8) = 

-56

400

(-12) x (-10)

120

500

(-3)³

-27

calculating with decimals

100

3.4 + 5.6 =

9

200

11 - 2.4 =

8.6

300

7 X 0.3 

2.1

400

0.13 x 0.02

0.0026

500

0.75 / 0.25

3

HCF and LCM

100

find the HCF of 30 and 45

15

200

find the LCM of 21 and 69

3

300

write 60 as a product of primes

2 x 2 x 3 x 5

2² x 3 x 5

400

Find HCF and LCM of 60 and 72

HCF : 12

LCM: 360

500

Find HCF and LCM of 12, 15 and 28

HCF: 1

LCM: 420

how well do you know your teacher

100

how old am I?

32

200

what's my favourite number

42

300

what's my favourite animal

giraffe

400

How do you spell my first name

Magali

500

What is my star sign

Capricorn