6.4 ANSWERS supporting path

Answers 

a) 5a 2b 

= 10ab 

 

b) 7b 9b 

= 63b2

 

c) 18y 3b 

= 0 3b 

= 0

 

d) -s 

= -su 

 

e) 3a + 7a 

= 10a 

 

f) 10pq + pq 

= 11pq

 

g) 5ab + 6a + 7b + 3ab + 2a 

= 8a + 8ab + 7b 

(order doesn't matter) 

 

h) 5gh .

= 20ag2h

 

i) 6a + 7 . 2a - 5 

= 6a + 14a - 5 

=  20a - 5 

Order of operations pyramid, order of operations, rekenvolgorde, rekenvolgorde driehoek
Rules multiplication with negative numbers, minus times minus equals plus, multiplication, positive, negative, math