(25+25)×25÷2525+25×25÷25
(56-56)÷856-256÷8
28×(10÷5)28×10÷5
结论:
0.860.829 13.21.32 6.316.310
9.75+64.8=
10.08-2.79=
4.06×0.85=
①38×54+46×38
②458-299+342
③67.6-6.4+3.6
④6000÷25÷4
⑤88×125
⑥11×[375÷(71-46)]