(1) 6.27 * 3.6 + 37.8 * 0.36 (2) (0.64 + 0.32) divided by 0.64 (3) 369 * 0.99 + 3.69 (4) (4) 13.5 * 2.5-0.35 * 25 These four questions are easy to calculate,

(1) 6.27 * 3.6 + 37.8 * 0.36 (2) (0.64 + 0.32) divided by 0.64 (3) 369 * 0.99 + 3.69 (4) (4) 13.5 * 2.5-0.35 * 25 These four questions are easy to calculate,

(1)=(6.27+3.78)*3.6
=10.05 * 3.6 (did you type the wrong number?)
=36.18
(2)=0.64/0.64+0.32/0.64
=1+0.5
=1.5
(3)=3.69*99+3.69
=(99+1)*3.69
=369