①12.5×20%×32
②87.5×0.25+75×87.5%
③(1-50%×)÷30%
④4.15-3.75×10%-
①(1-×)÷75%
②-80%×+25%
③4.8÷3×50%
④7.2×25%+2.8×25%
⑤÷(+75%)
⑥12÷×60%
901-698≈ 391÷41≈ ( + )×12= 3.9×4×0.25=