①0.96×÷ ②÷4+4÷ ③2019×
④×13+×25 ⑤(+2.1)×÷0.9 ⑥0.5+÷(0.75+)
0.6∶1.8=x =
5x-x=19.2 30%x+25=40
⑴59×101 ⑵12.7-3.6-5.4 ⑶1.25×2.5×3.2 ⑷31.9×0.18-80%×3.19 ⑸24×(+-) ⑹(48×+64)÷25%
①
②
③
⑴1.92÷2.5÷0.4 ⑵ ⑶
够□ 不够□