0.7 + 0.9 =

(a)  

3000 + 500 + 2 =

(a)  

50 x 8

(a)  

What would be the perimeter of a rectangle 6 cm by 9 cm?

(a)  

0.7, 0.8, 0.9, (a)  

230 - 90 = (a)  

178 + 564 = (a)