①0.96×÷ ②÷4+4÷ ③2019×
④×13+×25 ⑤(+2.1)×÷0.9 ⑥0.5+÷(0.75+)
78×12−12×38 38×0.6÷34−23 5×13−15÷512
914÷718×29 324÷[912×(518−16)]