Calculate: 2578

Calculate:

the sum of twice the numbers
a) 12 and 17
b) 13 and 18

The difference of three times the numbers:
c) 24 and 9
d) 23 and 6

four times the product of the numbers
e) 6 and 13
f) 7 and 14

the product of four times the numbers
g) 6 and 13
h) 7 and 14

Correct answer:

a =  58
b =  62
c =  45
d =  51
e =  312
f =  392
g =  1248
h =  1568

Step-by-step explanation:

$a=2\cdot 12+2\cdot 17=58$

$b=2\cdot 13+2\cdot 18=62$

$c=3\cdot 24-3\cdot 9=45$

$d=3\cdot 23-3\cdot 6=51$

$e=4\cdot 6\cdot 13=312$

$f=4\cdot 7\cdot 14=392$

$g=6\cdot 4\cdot 13\cdot 4=1248$

$h=7\cdot 4\cdot 14\cdot 4=1568$

Try another example